diff --git a/api/@ohos.file.fs.d.ts b/api/@ohos.file.fs.d.ts
index eb6ddfa720b04c712cdd16f86a406c89a561999f..9bd22d71bbf6f15f1938c4708c2fa1d66d70dea1 100644
--- a/api/@ohos.file.fs.d.ts
+++ b/api/@ohos.file.fs.d.ts
@@ -21,8 +21,6 @@
 import { AsyncCallback } from './@ohos.base';
 import stream from './@ohos.util.stream';
 
-export default fileIo;
-
 /**
  * FileIO
  *
@@ -54,93 +52,11 @@ export default fileIo;
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 12
+ * @since {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace fileIo {
-  export { access };
-  export { accessSync };
-  export { close };
-  export { closeSync };
-  export { copy };
-  export { copyDir };
-  export { copyDirSync };
-  export { copyFile };
-  export { copyFileSync };
-  export { createRandomAccessFile };
-  export { createRandomAccessFileSync };
-  export { createStream };
-  export { createStreamSync };
-  export { createReadStream };
-  export { createWriteStream };
-  export { createWatcher };
-  export { dup };
-  export { fdatasync };
-  export { fdatasyncSync };
-  export { fdopenStream };
-  export { fdopenStreamSync };
-  export { fsync };
-  export { fsyncSync };
-  export { getxattr };
-  export { getxattrSync };
-  export { listFile };
-  export { listFileSync };
-  export { lseek };
-  export { lstat };
-  export { lstatSync };
-  export { mkdir };
-  export { mkdirSync };
-  export { mkdtemp };
-  export { mkdtempSync };
-  export { moveDir };
-  export { moveDirSync };
-  export { moveFile };
-  export { moveFileSync };
-  export { open };
-  export { openSync };
-  export { read };
-  export { readSync };
-  export { readLines };
-  export { readLinesSync };
-  export { readText };
-  export { readTextSync };
-  export { rename };
-  export { renameSync };
-  export { rmdir };
-  export { rmdirSync };
-  export { setxattr };
-  export { setxattrSync };
-  export { stat };
-  export { statSync };
-  export { symlink };
-  export { symlinkSync };
-  export { truncate };
-  export { truncateSync };
-  export { unlink };
-  export { unlinkSync };
-  export { utimes };
-  export { write };
-  export { writeSync };
-  export { AccessModeType };
-  export { AccessFlagType };
-  export { File };
-  export { OpenMode };
-  export { RandomAccessFile };
-  export { ReaderIterator };
-  export { Stat };
-  export { Stream };
-  export { ReadStream };
-  export { WriteStream };
-  export { AtomicFile };
-  export { Watcher };
-  export { WhenceType };
-  export { TaskSignal };
-  export { connectDfs };
-  export { disconnectDfs };
-  export type { Progress };
-  export type { CopyOptions };
-  export type { ProgressListener };
-  export type { DfsListeners };
-
+  
   /**
    * Mode Indicates the open flags.
    *
@@ -163,7 +79,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   namespace OpenMode {
   /**
@@ -188,7 +105,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const READ_ONLY = 0o0;
   /**
@@ -213,7 +131,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const WRITE_ONLY = 0o1;
   /**
@@ -238,7 +157,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const READ_WRITE = 0o2;
   /**
@@ -263,7 +183,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const CREATE = 0o100;
   /**
@@ -288,7 +209,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const TRUNC = 0o1000;
   /**
@@ -313,7 +235,8 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const APPEND = 0o2000;
   /**
@@ -329,7 +252,8 @@ declare namespace fileIo {
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const NONBLOCK = 0o4000;
   /**
@@ -345,7 +269,8 @@ declare namespace fileIo {
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const DIR = 0o200000;
   /**
@@ -377,6452 +302,4215 @@ declare namespace fileIo {
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
     const SYNC = 0o4010000;
   }
-}
-
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @returns { Promise<boolean> } return Promise
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function access(path: string, mode?: AccessModeType): Promise<boolean>;
-
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Access file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function access(path: string, callback: AsyncCallback<boolean>): void;
-
-/**
- * Access file.
- *
- * @param { string } path - file path that needs to be checked whether the calling process can access.
- * @param { AccessModeType } mode - accessibility mode.
- * @param { AccessFlagType } flag - accessibility flag.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function access(path: string, mode: AccessModeType, flag: AccessFlagType): Promise<boolean>;
 
-/**
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- *  
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function accessSync(path: string, mode?: AccessModeType): boolean;
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<boolean> } return Promise
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since 11
+   */
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
+   * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function access(path: string, mode?: AccessModeType): Promise<boolean>;
 
-/**
- * Access file with sync interface.
- *
- * @param { string } path - file path that needs to be checked whether the calling process can access.
- * @param { AccessModeType } mode - accessibility mode.
- * @param { AccessFlagType } flag - accessibility flag.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function accessSync(path: string, mode: AccessModeType, flag: AccessFlagType): boolean;
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Access file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function access(path: string, callback: AsyncCallback<boolean>): void;
 
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function close(file: number | File): Promise<void>;
+  /**
+   * Access file.
+   *
+   * @param { string } path - file path that needs to be checked whether the calling process can access.
+   * @param { AccessModeType } mode - accessibility mode.
+   * @param { AccessFlagType } flag - accessibility flag.
+   * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function access(path: string, mode: AccessModeType, flag: AccessFlagType): Promise<boolean>;
 
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function close(file: number | File, callback: AsyncCallback<void>): void;
-
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function closeSync(file: number | File): void;
-
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } [options] - options.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } [options] - options.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copy(srcUri: string, destUri: string, options?: CopyOptions): Promise<void>;
+  /**
+   * Access file with sync interface.
+   *
+   * @param { string } path - path.
+   * @returns { boolean } Returns the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Access file with sync interface.
+   *
+   * @param { string } path - path.
+   * @returns { boolean } Returns the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Access file with sync interface.
+   *
+   * @param { string } path - path.
+   * @returns { boolean } Returns the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since 11
+   */
+  /**
+   *  
+   * Access file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
+   * @returns { boolean } Returns the file is accessible or not.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function accessSync(path: string, mode?: AccessModeType): boolean;
 
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function copy(srcUri: string, destUri: string, callback: AsyncCallback<void>): void;
+  /**
+   * Access file with sync interface.
+   *
+   * @param { string } path - file path that needs to be checked whether the calling process can access.
+   * @param { AccessModeType } mode - accessibility mode.
+   * @param { AccessFlagType } flag - accessibility flag.
+   * @returns { boolean } Returns the file is accessible or not.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function accessSync(path: string, mode: AccessModeType, flag: AccessFlagType): boolean;
 
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } options - options.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function copy(srcUri: string, destUri: string, options: CopyOptions, callback: AsyncCallback<void>): void;
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function close(file: number | File): Promise<void>;
 
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copyDir(src: string, dest: string, mode?: number): Promise<void>;
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Close file or fd.
+   *
+   * @param { number | File } file - file object or fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function close(file: number | File, callback: AsyncCallback<void>): void;
 
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+  /**
+   * Close file or fd with sync interface.
+   *
+   * @param { number | File } file - file object or fd.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Close file or fd with sync interface.
+   *
+   * @param { number | File } file - file object or fd.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Close file or fd with sync interface.
+   *
+   * @param { number | File } file - file object or fd.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function closeSync(file: number | File): void;
 
+  /**
+   * Copy file or directory.
+   *
+   * @param { string } srcUri - src uri.
+   * @param { string } destUri - dest uri.
+   * @param { CopyOptions } [options] - options.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied by the file system
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 11
+   */
+  /**
+   * Copy file or directory.
+   *
+   * @param { string } srcUri - src uri.
+   * @param { string } destUri - dest uri.
+   * @param { CopyOptions } [options] - options.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied by the file system
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copy(srcUri: string, destUri: string, options?: CopyOptions): Promise<void>;
 
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } mode - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
+  /**
+   * Copy file or directory.
+   *
+   * @param { string } srcUri - src uri.
+   * @param { string } destUri - dest uri.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied by the file system
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copy(srcUri: string, destUri: string, callback: AsyncCallback<void>): void;
 
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } mode - mode.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+  /**
+   * Copy file or directory.
+   *
+   * @param { string } srcUri - src uri.
+   * @param { string } destUri - dest uri.
+   * @param { CopyOptions } options - options.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied by the file system
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copy(srcUri: string, destUri: string, options: CopyOptions, callback: AsyncCallback<void>): void;
 
-/**
- * Copy directory with sync interface.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Copy directory with sync interface.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copyDirSync(src: string, dest: string, mode?: number): void;
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 10
+   */
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDir(src: string, dest: string, mode?: number): Promise<void>;
 
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function copyFile(src: string | number, dest: string | number, mode?: number): Promise<void>;
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDir(src: string, dest: string, callback: AsyncCallback<void>): void;
 
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function copyFile(src: string | number, dest: string | number, callback: AsyncCallback<void>): void;
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+   * @throws { BusinessError } 13900015 - File exists
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function copyFile(
-  src: string | number,
-  dest: string | number,
-  mode: number,
-  callback: AsyncCallback<void>
-): void;
 
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function copyFileSync(src: string | number, dest: string | number, mode?: number): void;
-
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } return Promise
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } return Promise
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createStream(path: string, mode: string): Promise<Stream>;
-
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @param { AsyncCallback<Stream> } callback - callback.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function createStream(path: string, mode: string, callback: AsyncCallback<Stream>): void;
-
-/**
- * Create class Stream with sync interface.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Stream } createStream
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Create class Stream with sync interface.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Stream } createStream
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createStreamSync(path: string, mode: string): Stream;
-
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
- * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createRandomAccessFile(file: string | File, mode?: number,
-  options?: RandomAccessFileOptions): Promise<RandomAccessFile>;
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createRandomAccessFile(file: string | File, callback: AsyncCallback<RandomAccessFile>): void;
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createRandomAccessFile(file: string | File, mode: number, callback: AsyncCallback<RandomAccessFile>): void;
-
-/**
- * Create class RandomAccessFile with sync interface.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Create class RandomAccessFile with sync interface.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
- * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createRandomAccessFileSync(file: string | File, mode?: number,
-  options?: RandomAccessFileOptions): RandomAccessFile;
-
-/**
- * Create file read stream.
- *
- * @param { string } path - file path.
- * @param { ReadStreamOptions } [options] - Optional parameters for ReadStream.
- * @returns { ReadStream } Returns the ReadStream object which has been created.
- * @throws { BusinessError } 401 - Parameter error
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } mode - mode.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
 
-/**
- * Create file write stream.
- *
- * @param { string } path - file path.
- * @param { WriteStreamOptions } [options] - Optional parameters for ReadStream.
- * @returns { WriteStream } Returns the WriteStream object which has been created.
- * @throws { BusinessError } 401 - Parameter error
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
+  /**
+   * Copy directory.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } mode - mode.
+   * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+   * @throws { BusinessError } 13900015 - File exists
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
-/**
- * Create watcher to listen for file changes.
- *
- * @param { string } path - path.
- * @param { number } events - listened events.
- * @param { WatchEventListener } listener - Callback to invoke when an event of the specified type occurs.
- * @returns { Watcher } Returns the Watcher object which has been created.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createWatcher(path: string, events: number, listener: WatchEventListener): Watcher;
+  /**
+   * Copy directory with sync interface.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 10
+   */
+  /**
+   * Copy directory with sync interface.
+   *
+   * @param { string } src - source path.
+   * @param { string } dest - destination path.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyDirSync(src: string, dest: string, mode?: number): void;
 
-/**
- * Duplicate fd to File Object.
- *
- * @param { number } fd - fd.
- * @returns { File } return File
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function dup(fd: number): File;
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since 11
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyFile(src: string | number, dest: string | number, mode?: number): Promise<void>;
 
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasync(fd: number): Promise<void>;
-
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasync(fd: number, callback: AsyncCallback<void>): void;
-
-/**
- * Synchronize file metadata with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasyncSync(fd: number): void;
-
-/**
- * Create class Stream by using fd.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } Returns the Stream object in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStream(fd: number, mode: string): Promise<Stream>;
-
-/**
- * Create class Stream by using fd.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @param { AsyncCallback<Stream> } callback - The callback is used to return the Stream object.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStream(fd: number, mode: string, callback: AsyncCallback<Stream>): void;
-
-/**
- * Create class Stream by using fd with sync interface.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @returns { Stream } Returns the Stream object.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStreamSync(fd: number, mode: string): Stream;
-
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsync(fd: number): Promise<void>;
-
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsync(fd: number, callback: AsyncCallback<void>): void;
-
-/**
- * Synchronize file with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsyncSync(fd: number): void;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria in promise mode.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(
-  path: string,
-  options?: ListFileOptions
-): Promise<string[]>;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(path: string, callback: AsyncCallback<string[]>): void;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(
-  path: string,
-  options: ListFileOptions,
-  callback: AsyncCallback<string[]>
-): void;
-
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFileSync(
-  path: string,
-  options?: ListFileOptions
-): string[];
-
-/**
- *  Reposition file offset.
- *
- * @param { number } fd - file descriptor.
- * @param { number } offset - file offset.
- * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
- * @returns { number } Returns the file offset relative to starting position of file.
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900026 - Illegal seek
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- *  Reposition file offset.
- *
- * @param { number } fd - file descriptor.
- * @param { number } offset - file offset.
- * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
- * @returns { number } Returns the file offset relative to starting position of file.
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900026 - Illegal seek
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 12
- */
-declare function lseek(fd: number, offset: number, whence?: WhenceType): number;
-
-/**
- * Stat link file.
- *
- * @param { string } path - path.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstat(path: string): Promise<Stat>;
-
-/**
- * Stat link file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstat(path: string, callback: AsyncCallback<Stat>): void;
-
-/**
- * Stat link file with sync interface.
- *
- * @param { string } path - path.
- * @returns { Stat } Returns the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstatSync(path: string): Stat;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string): Promise<void>;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, recursion: boolean): Promise<void>;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, callback: AsyncCallback<void>): void;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, recursion: boolean, callback: AsyncCallback<void>): void;
-
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdirSync(path: string): void;
-
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdirSync(path: string, recursion: boolean): void;
-
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @returns { Promise<string> } Returns the path to the new directory in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @returns { Promise<string> } Returns the path to the new directory in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtemp(prefix: string): Promise<string>;
-
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtemp(prefix: string, callback: AsyncCallback<string>): void;
-
-/**
- * Make temp dir with sync interface.
- *
- * @param { string } prefix - dir prefix.
- * @returns { string } Returns the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir with sync interface.
- *
- * @param { string } prefix - dir prefix.
- * @returns { string } Returns the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtempSync(prefix: string): string;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode?: number): Promise<void>;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } mode - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } mode - move mode when duplicate file name exists.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-/**
- * Move directory with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDirSync(src: string, dest: string, mode?: number): void;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, mode?: number): Promise<void>;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
-
-/**
- * Move file with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFileSync(src: string, dest: string, mode?: number): void;
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyFile(src: string | number, dest: string | number, callback: AsyncCallback<void>): void;
 
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function open(path: string, mode?: number): Promise<File>;
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Copy file.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyFile(
+    src: string | number,
+    dest: string | number,
+    mode: number,
+    callback: AsyncCallback<void>
+  ): void;
 
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function open(path: string, callback: AsyncCallback<File>): void;
+  /**
+   * Copy file with sync interface.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Copy file with sync interface.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Copy file with sync interface.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since 11
+   */
+  /**
+   * Copy file with sync interface.
+   *
+   * @param { string | number } src - src.
+   * @param { string | number } dest - dest.
+   * @param { number } [mode = 0] - mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function copyFileSync(src: string | number, dest: string | number, mode?: number): void;
 
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function open(path: string, mode: number, callback: AsyncCallback<File>): void;
+  /**
+   * Create class Stream.
+   *
+   * @param { string } path - path.
+   * @param { string } mode - mode.
+   * @returns { Promise<Stream> } return Promise
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Create class Stream.
+   *
+   * @param { string } path - path.
+   * @param { string } mode - mode.
+   * @returns { Promise<Stream> } return Promise
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createStream(path: string, mode: string): Promise<Stream>;
 
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function openSync(path: string, mode?: number): File;
+  /**
+   * Create class Stream.
+   *
+   * @param { string } path - path.
+   * @param { string } mode - mode.
+   * @param { AsyncCallback<Stream> } callback - callback.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createStream(path: string, mode: string, callback: AsyncCallback<Stream>): void;
 
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function read(
-  fd: number,
-  buffer: ArrayBuffer,
-  options?: ReadOptions
-): Promise<number>;
+  /**
+   * Create class Stream with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { string } mode - mode.
+   * @returns { Stream } createStream
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Create class Stream with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { string } mode - mode.
+   * @returns { Stream } createStream
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createStreamSync(path: string, mode: string): Stream;
 
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
 
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function read(
-  fd: number,
-  buffer: ArrayBuffer,
-  options: ReadOptions,
-  callback: AsyncCallback<number>
-): void;
+  /**
+   * Create class RandomAccessFile.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 10
+   */
+  /**
+   * Create class RandomAccessFile.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
+   * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createRandomAccessFile(file: string | File, mode?: number,
+    options?: RandomAccessFileOptions): Promise<RandomAccessFile>;
 
-/**
- * Read file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Read file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function readSync(
-  fd: number,
-  buffer: ArrayBuffer,
-  options?: ReadOptions
-): number;
+  /**
+   * Create class RandomAccessFile.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createRandomAccessFile(file: string | File, callback: AsyncCallback<RandomAccessFile>): void;
 
-/**
- * Read content line by line.
- *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- * Read content line by line.
- *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function readLines(filePath: string, options?: Options): Promise<ReaderIterator>;
+  /**
+   * Create class RandomAccessFile.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createRandomAccessFile(file: string | File, mode: number, callback: AsyncCallback<RandomAccessFile>): void;
+
+  /**
+   * Create class RandomAccessFile with sync interface.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 10
+   */
+  /**
+   * Create class RandomAccessFile with sync interface.
+   *
+   * @param { string | File } file - file path, object.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
+   * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createRandomAccessFileSync(file: string | File, mode?: number,
+    options?: RandomAccessFileOptions): RandomAccessFile;
 
-/**
- * Read content line by line.
- *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function readLines(filePath: string, callback: AsyncCallback<ReaderIterator>): void;
+  /**
+   * Create file read stream.
+   *
+   * @param { string } path - file path.
+   * @param { ReadStreamOptions } [options] - Optional parameters for ReadStream.
+   * @returns { ReadStream } Returns the ReadStream object which has been created.
+   * @throws { BusinessError } 401 - Parameter error
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
 
-/**
- * Read content line by line.
- *
- * @param { string } filePath - file path.
- * @param { Options } options - optional parameters
- * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function readLines(filePath: string, options: Options, callback: AsyncCallback<ReaderIterator>): void;
+  /**
+   * Create file write stream.
+   *
+   * @param { string } path - file path.
+   * @param { WriteStreamOptions } [options] - Optional parameters for ReadStream.
+   * @returns { WriteStream } Returns the WriteStream object which has been created.
+   * @throws { BusinessError } 401 - Parameter error
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
 
-/**
- * Read content line by line with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { ReaderIterator } Returns the iterator object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- * Read content line by line with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { ReaderIterator } Returns the iterator object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function readLinesSync(filePath: string, options?: Options): ReaderIterator;
+  /**
+   * Create watcher to listen for file changes.
+   *
+   * @param { string } path - path.
+   * @param { number } events - listened events.
+   * @param { WatchEventListener } listener - Callback to invoke when an event of the specified type occurs.
+   * @returns { Watcher } Returns the Watcher object which has been created.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 10
+   */
+  function createWatcher(path: string, events: number, listener: WatchEventListener): Watcher;
 
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function readText(
-  filePath: string,
-  options?: ReadTextOptions
-): Promise<string>;
+  /**
+   * Duplicate fd to File Object.
+   *
+   * @param { number } fd - fd.
+   * @returns { File } return File
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function dup(fd: number): File;
 
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function readText(filePath: string, callback: AsyncCallback<string>): void;
+  /**
+   * Synchronize file metadata.
+   *
+   * @param { number } fd - fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file metadata.
+   *
+   * @param { number } fd - fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdatasync(fd: number): Promise<void>;
 
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read text.
- *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function readText(
-  filePath: string,
-  options: ReadTextOptions,
-  callback: AsyncCallback<string>
-): void;
+  /**
+   * Synchronize file metadata.
+   *
+   * @param { number } fd - fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file metadata.
+   *
+   * @param { number } fd - fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdatasync(fd: number, callback: AsyncCallback<void>): void;
 
-/**
- * Read text with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read text with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read text with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Read text with sync interface.
- *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function readTextSync(
-  filePath: string,
-  options?: ReadTextOptions
-): string;
+  /**
+   * Synchronize file metadata with sync interface.
+   *
+   * @param { number } fd - fd.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file metadata with sync interface.
+   *
+   * @param { number } fd - fd.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdatasyncSync(fd: number): void;
 
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function rename(oldPath: string, newPath: string): Promise<void>;
+  /**
+   * Create class Stream by using fd.
+   *
+   * @param { number } fd - fd.
+   * @param { string } mode - mode.
+   * @returns { Promise<Stream> } Returns the Stream object in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdopenStream(fd: number, mode: string): Promise<Stream>;
 
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Rename file.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function rename(oldPath: string, newPath: string, callback: AsyncCallback<void>): void;
+  /**
+   * Create class Stream by using fd.
+   *
+   * @param { number } fd - fd.
+   * @param { string } mode - mode.
+   * @param { AsyncCallback<Stream> } callback - The callback is used to return the Stream object.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdopenStream(fd: number, mode: string, callback: AsyncCallback<Stream>): void;
 
-/**
- * Rename file with sync interface.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Rename file with sync interface.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Rename file with sync interface.
- *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function renameSync(oldPath: string, newPath: string): void;
+  /**
+   * Create class Stream by using fd with sync interface.
+   *
+   * @param { number } fd - fd.
+   * @param { string } mode - mode.
+   * @returns { Stream } Returns the Stream object.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fdopenStreamSync(fd: number, mode: string): Stream;
 
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function rmdir(path: string): Promise<void>;
+  /**
+   * Synchronize file.
+   *
+   * @param { number } fd - fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file.
+   *
+   * @param { number } fd - fd.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fsync(fd: number): Promise<void>;
 
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function rmdir(path: string, callback: AsyncCallback<void>): void;
+  /**
+   * Synchronize file.
+   *
+   * @param { number } fd - fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file.
+   *
+   * @param { number } fd - fd.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fsync(fd: number, callback: AsyncCallback<void>): void;
 
-/**
- * Delete dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function rmdirSync(path: string): void;
+  /**
+   * Synchronize file with sync interface.
+   *
+   * @param { number } fd - fd.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Synchronize file with sync interface.
+   *
+   * @param { number } fd - fd.
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function fsyncSync(fd: number): void;
 
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function stat(file: string | number): Promise<Stat>;
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria in promise mode.
+   *      If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
+   *      If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { ListFileOptions } [options] - options.
+   * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
+   *      If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function listFile(
+    path: string,
+    options?: ListFileOptions
+  ): Promise<string[]>;
 
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Get file information.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function stat(file: string | number, callback: AsyncCallback<Stat>): void;
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function listFile(path: string, callback: AsyncCallback<string[]>): void;
 
-/**
- * Get file information with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Get file information with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Get file information with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function statSync(file: string | number): Stat;
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * List file.
+   *
+   * @param { string } path - path.
+   * @param { ListFileOptions } [options] - options.
+   * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+   *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function listFile(
+    path: string,
+    options: ListFileOptions,
+    callback: AsyncCallback<string[]>
+  ): void;
 
-/**
- * Link file.
- *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function symlink(target: string, srcPath: string): Promise<void>;
+  /**
+   * List file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * List file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { object } [options] - options.
+   * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * List file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { ListFileOptions } [options] - options.
+   * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function listFileSync(
+    path: string,
+    options?: ListFileOptions
+  ): string[];
 
-/**
- * Link file.
- *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;
+  /**
+   *  Reposition file offset.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { number } offset - file offset.
+   * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
+   * @returns { number } Returns the file offset relative to starting position of file.
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900026 - Illegal seek
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 11
+   */
+  /**
+   *  Reposition file offset.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { number } offset - file offset.
+   * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
+   * @returns { number } Returns the file offset relative to starting position of file.
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900026 - Illegal seek
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function lseek(fd: number, offset: number, whence?: WhenceType): number;
 
-/**
- * Link file with sync interface.
- *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function symlinkSync(target: string, srcPath: string): void;
+  /**
+   * Stat link file.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function lstat(path: string): Promise<Stat>;
+
+  /**
+   * Stat link file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function lstat(path: string, callback: AsyncCallback<Stat>): void;
 
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function truncate(file: string | number, len?: number): Promise<void>;
+  /**
+   * Stat link file with sync interface.
+   *
+   * @param { string } path - path.
+   * @returns { Stat } Returns the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function lstatSync(path: string): Stat;
 
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function truncate(file: string | number, callback: AsyncCallback<void>): void;
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdir(path: string): Promise<void>;
 
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Truncate file.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function truncate(file: string | number, len: number, callback: AsyncCallback<void>): void;
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @param { boolean } recursion - whether to recursively make directory.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdir(path: string, recursion: boolean): Promise<void>;
 
-/**
- * Truncate file with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Truncate file with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Truncate file with sync interface.
- *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function truncateSync(file: string | number, len?: number): void;
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdir(path: string, callback: AsyncCallback<void>): void;
 
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function unlink(path: string): Promise<void>;
+  /**
+   * Make dir.
+   *
+   * @param { string } path - path.
+   * @param { boolean } recursion - whether to recursively make directory.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdir(path: string, recursion: boolean, callback: AsyncCallback<void>): void;
 
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function unlink(path: string, callback: AsyncCallback<void>): void;
+  /**
+   * Make dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Make dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdirSync(path: string): void;
 
-/**
- * Delete file with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Delete file with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Delete file with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function unlinkSync(path: string): void;
+  /**
+   * Make dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { boolean } recursion - whether to recursively make directory.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdirSync(path: string, recursion: boolean): void;
 
-/**
- * Change file mtime.
- *
- * @param { string } path - path.
- * @param { number } mtime - last modification time
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- * Change file mtime.
- *
- * @param { string } path - path.
- * @param { number } mtime - last modification time
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 12
- */
-declare function utimes(path: string, mtime: number): void;
+  /**
+   * Make temp dir.
+   *
+   * @param { string } prefix - dir prefix.
+   * @returns { Promise<string> } Returns the path to the new directory in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make temp dir.
+   *
+   * @param { string } prefix - dir prefix.
+   * @returns { Promise<string> } Returns the path to the new directory in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdtemp(prefix: string): Promise<string>;
 
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { WriteOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function write(
-  fd: number,
-  buffer: ArrayBuffer | string,
-  options?: WriteOptions
-): Promise<number>;
+  /**
+   * Make temp dir.
+   *
+   * @param { string } prefix - dir prefix.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make temp dir.
+   *
+   * @param { string } prefix - dir prefix.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdtemp(prefix: string, callback: AsyncCallback<string>): void;
+
+  /**
+   * Make temp dir with sync interface.
+   *
+   * @param { string } prefix - dir prefix.
+   * @returns { string } Returns the path to the new directory.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Make temp dir with sync interface.
+   *
+   * @param { string } prefix - dir prefix.
+   * @returns { string } Returns the path to the new directory.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function mkdtempSync(prefix: string): string;
 
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function write(fd: number, buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+  /**
+   * Move directory.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDir(src: string, dest: string, mode?: number): Promise<void>;
 
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Write file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { WriteOptions } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function write(
-  fd: number,
-  buffer: ArrayBuffer | string,
-  options: WriteOptions,
-  callback: AsyncCallback<number>
-): void;
+  /**
+   * Move directory.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDir(src: string, dest: string, callback: AsyncCallback<void>): void;
 
-/**
- * Write file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Write file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Write file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { WriteOptions } [options] - options.
- * @returns { number } Returns the number of bytes written to the file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function writeSync(
-  fd: number,
-  buffer: ArrayBuffer | string,
-  options?: WriteOptions
-): number;
+  /**
+   * Move directory.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+   * @throws { BusinessError } 13900015 - File exists
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
-/**
- * Connect Distributed File System.
- *
- * @permission ohos.permission.DISTRIBUTED_DATASYNC
- * @param { string } networkId - The networkId of device.
- * @param { DfsListeners } listeners - The listeners of Distributed File System.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 201 - Permission denied.
- * @throws { BusinessError } 401 - The parameter check failed.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900045 - Connection failed.
- * @throws { BusinessError } 13900046 - Software caused connection abort.
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function connectDfs(networkId: string, listeners: DfsListeners): Promise<void>;
+  /**
+   * Move directory.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } mode - move mode when duplicate file name exists.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
 
-/**
- * Disconnect Distributed File System.
- *
- * @permission ohos.permission.DISTRIBUTED_DATASYNC
- * @param { string } networkId - The networkId of device.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 201 - Permission denied.
- * @throws { BusinessError } 401 - The parameter check failed.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13600004 - Unmount failed.
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function disconnectDfs(networkId: string): Promise<void>;
+  /**
+   * Move directory.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } mode - move mode when duplicate file name exists.
+   * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+   * @throws { BusinessError } 13900015 - File exists
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
-/**
- * Set extended attributes information of the file.
- *
- * @param { string } path - path.
- * @param { string } key - the key of extended attribute.
- * @param { string } value - the value of extended attribute.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function setxattr(path: string, key: string, value: string): Promise<void>;
+  /**
+   * Move directory with sync interface.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveDirSync(src: string, dest: string, mode?: number): void;
 
-/**
- * Set extended attributes information of the file.
- *
- * @param { string } path - path.
- * @param { string } key - the key of extended attribute.
- * @param { string } value - the value of extended attribute.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveFile(src: string, dest: string, mode?: number): Promise<void>;
+
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveFile(src: string, dest: string, callback: AsyncCallback<void>): void;
 
-declare function setxattrSync(path: string, key: string, value: string): void;
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Move file.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveFile(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
 
-/**
- * Get extended attributes information of the file.
- *
- * @param { string } path - path.
- * @param { string } key - the key of extended attribute.
- * @returns { Promise<string> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900007 - Arg list too long
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900037 - No data available
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function getxattr(path: string, key: string): Promise<string>;
+  /**
+   * Move file with sync interface.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Move file with sync interface.
+   *
+   * @param { string } src - source file path.
+   * @param { string } dest - destination file path.
+   * @param { number } [mode = 0] - move mode when duplicate file name exists.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function moveFileSync(src: string, dest: string, mode?: number): void;
 
-/**
- * Get extended attributes information of the file with sync interface.
- *
- * @param { string } path - path.
- * @param { string } key - the key of extended attribute.
- * @returns { string } Return the value of extended attribute.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900007 - Arg list too long
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900037 - No data available
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function getxattrSync(path: string, key: string): string;
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since 11
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function open(path: string, mode?: number): Promise<File>;
+
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function open(path: string, callback: AsyncCallback<File>): void;
 
-/**
- * Progress data of copyFile
- *
- * @typedef Progress
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-interface Progress {
   /**
-   * @type { number }
-   * @readonly
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 9
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Open file.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly processedSize: number;
+  function open(path: string, mode: number, callback: AsyncCallback<File>): void;
 
   /**
-   * @type { number }
-   * @readonly
+   * Open file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { File } Returns the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * Open file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { File } Returns the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Open file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { File } Returns the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
    * @since 11
    */
-  readonly totalSize: number;
-}
+  /**
+   * Open file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+   * @returns { File } Returns the File object to record the file descriptor.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900006 - No such device or address
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900017 - No such device
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900029 - Resource deadlock would occur
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function openSync(path: string, mode?: number): File;
 
-/**
- * Task signal.
- *
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-export class TaskSignal {
   /**
-   * Cancel the copy task in progress.
+   * Read file.
    *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900012 - Permission denied by the file system
-   * @throws { BusinessError } 13900043 - No task can be canceled.
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 9
    */
-  cancel(): void;
-
   /**
-   * Subscribe the cancel event of current task.
+   * Read file.
    *
-   * @returns { Promise<string> } Return the result of the cancel event.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
    * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @since 10
    */
-  onCancel(): Promise<string>;
-}
-
-/**
- * Get options of copy
- *
- * @typedef CopyOptions
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-interface CopyOptions {
   /**
-   * Listener of copy progress
+   * Read file.
    *
-   * @type { ?ProgressListener }
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { ReadOptions } [options] - options.
+   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
    * @since 11
    */
-  progressListener?: ProgressListener;
   /**
-   * Cancel signal of copy.
+   * Read file.
    *
-   * @type { ?TaskSignal }
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { ReadOptions } [options] - options.
+   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  copySignal?: TaskSignal;
-}
-
-/**
- * Listener of copy progress.
- *
- * @typedef { function } ProgressListener
- * @param { Progress } progress - indicates the progress data of copyFile
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-type ProgressListener = (progress: Progress) => void;
+  function read(
+    fd: number,
+    buffer: ArrayBuffer,
+    options?: ReadOptions
+  ): Promise<number>;
 
-/**
- * File object.
- *
- * @interface File
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * File object.
- *
- * @interface File
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * File object.
- *
- * @interface File
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare interface File {
   /**
-   * @type { number }
-   * @readonly
+   * Read file.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Read file.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * @type { number }
-   * @readonly
+   * Read file.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly fd: number;
+  function read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
 
   /**
-   * File path
-   * 
-   * @type { string }
-   * @readonly
+   * Read file.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 14300002 - Invalid URI
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 9
    */
-  readonly path: string;
-
   /**
-   * File name
-   * 
-   * @type { string }
-   * @readonly
+   * Read file.
+   *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
    * @since 10
    */
-  readonly name: string;
-
   /**
-   * Get parent path of file.
+   * Read file.
    *
-   * @returns { string } Return the parent path of file.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { ReadOptions } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 14300002 - Invalid URI
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  getParent(): string;
+  function read(
+    fd: number,
+    buffer: ArrayBuffer,
+    options: ReadOptions,
+    callback: AsyncCallback<number>
+  ): void;
 
   /**
-   * Lock file with blocking method.
+   * Read file with sync interface.
    *
-   * @param { boolean } exclusive - whether lock is exclusive.
-   * @returns { Promise<void> } The promise returned by the function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { number } Returns the number of file bytes read to buffer.
    * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
-  lock(exclusive?: boolean): Promise<void>;
-
   /**
-   * Lock file with blocking method.
+   * Read file with sync interface.
    *
-   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { number } Returns the number of file bytes read to buffer.
    * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 10
    */
-  lock(callback: AsyncCallback<void>): void;
-
   /**
-   * Lock file with blocking method.
+   * Read file with sync interface.
    *
-   * @param { boolean } exclusive - whether lock is exclusive.
-   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { ReadOptions } [options] - options.
+   * @returns { number } Returns the number of file bytes read to buffer.
    * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since 11
    */
-  lock(exclusive: boolean, callback: AsyncCallback<void>): void;
-
   /**
-   * Try to lock file with returning results immediately.
+   * Read file with sync interface.
    *
-   * @param { boolean } exclusive - whether lock is exclusive.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer } buffer - buffer.
+   * @param { ReadOptions } [options] - options.
+   * @returns { number } Returns the number of file bytes read to buffer.
    * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900043 - No record locks available
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  tryLock(exclusive?: boolean): void;
+  function readSync(
+    fd: number,
+    buffer: ArrayBuffer,
+    options?: ReadOptions
+  ): number;
 
   /**
-   * Unlock file.
+   * Read content line by line.
    *
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @param { string } filePath - file path.
+   * @param { Options } [options] - optional parameters
+   * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 11
    */
-  unlock(): void;
-}
+  /**
+   * Read content line by line.
+   *
+   * @param { string } filePath - file path.
+   * @param { Options } [options] - optional parameters
+   * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function readLines(filePath: string, options?: Options): Promise<ReaderIterator>;
 
-/**
- * RandomAccessFile object.
- *
- * @interface RandomAccessFile
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare interface RandomAccessFile {
+  /**
+   * Read content line by line.
+   *
+   * @param { string } filePath - file path.
+   * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function readLines(filePath: string, callback: AsyncCallback<ReaderIterator>): void;
 
   /**
-   * File descriptor
+   * Read content line by line.
    *
-   * @type { number }
-   * @readonly
+   * @param { string } filePath - file path.
+   * @param { Options } options - optional parameters
+   * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly fd: number;
+  function readLines(filePath: string, options: Options, callback: AsyncCallback<ReaderIterator>): void;
 
   /**
-   * File pointer
+   * Read content line by line with sync interface.
    *
-   * @type { number }
-   * @readonly
+   * @param { string } filePath - file path.
+   * @param { Options } [options] - optional parameters
+   * @returns { ReaderIterator } Returns the iterator object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 11
+   */
+  /**
+   * Read content line by line with sync interface.
+   *
+   * @param { string } filePath - file path.
+   * @param { Options } [options] - optional parameters
+   * @returns { ReaderIterator } Returns the iterator object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly filePointer: number;
+  function readLinesSync(filePath: string, options?: Options): ReaderIterator;
 
   /**
-   * Set file pointer.
+   * Read text.
    *
-   * @param { number } filePointer - filePointer.
+   * @param { string } filePath - file path.
+   * @param { object } [options] - options.
+   * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 9
    */
-  setFilePointer(filePointer: number): void;
-
   /**
-   * Close randomAccessFile with sync interface.
+   * Read text.
    *
+   * @param { string } filePath - file path.
+   * @param { object } [options] - options.
+   * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
    * @since 10
    */
-  close(): void;
-
   /**
-   * Write randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+   * @param { string } filePath - file path.
+   * @param { ReadTextOptions } [options] - options.
+   * @returns { Promise<string> } Returns the contents of the read file in promise mode.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6830,45 +4518,53 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @crossplatform
+   * @atomicservice
+   * @since 11
    */
   /**
-   * Write randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+   * @param { string } filePath - file path.
+   * @param { ReadTextOptions } [options] - options.
+   * @returns { Promise<string> } Returns the contents of the read file in promise mode.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  write(
-    buffer: ArrayBuffer | string,
-    options?: WriteOptions
-  ): Promise<number>;
+  function readText(
+    filePath: string,
+    options?: ReadTextOptions
+  ): Promise<string>;
 
   /**
-   * Write randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @param { string } filePath - file path.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6876,22 +4572,20 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 9
    */
-  write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
-
   /**
-   * Write randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @param { string } filePath - file path.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6899,20 +4593,21 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
    * @since 10
    */
   /**
-   * Write randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @param { string } filePath - file path.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6920,26 +4615,26 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  write(
-    buffer: ArrayBuffer | string,
-    options: WriteOptions,
-    callback: AsyncCallback<number>
-  ): void;
+  function readText(filePath: string, callback: AsyncCallback<string>): void;
 
   /**
-   * Write randomAccessFile with sync interface.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { string } filePath - file path.
    * @param { object } [options] - options.
-   * @returns { number } Returns the number of bytes written to the file.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6947,20 +4642,21 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 9
    */
   /**
-   * Write randomAccessFile with sync interface.
+   * Read text.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @returns { number } Returns the number of bytes written to the file.
+   * @param { string } filePath - file path.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
@@ -6968,19 +4664,16 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @since 10
    */
-  writeSync(
-    buffer: ArrayBuffer | string,
-    options?: WriteOptions
-  ): number;
-
   /**
-   * Read randomAccessFile.
+   * Read text.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @param { string } filePath - file path.
+   * @param { ReadTextOptions } [options] - options.
+   * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -6988,17 +4681,30 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900013 - Bad address
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
+  function readText(
+    filePath: string,
+    options: ReadTextOptions,
+    callback: AsyncCallback<string>
+  ): void;
+
   /**
-   * Read randomAccessFile.
+   * Read text with sync interface.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @param { string } filePath - file path.
+   * @param { object } [options] - options.
+   * @returns { string } Returns the contents of the read file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -7006,17 +4712,21 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900013 - Bad address
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 9
    */
   /**
-   * Read randomAccessFile.
+   * Read text with sync interface.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @param { string } filePath - file path.
+   * @param { object } [options] - options.
+   * @returns { string } Returns the contents of the read file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -7024,22 +4734,22 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900013 - Bad address
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @since 10
    */
-  read(
-    buffer: ArrayBuffer,
-    options?: ReadOptions
-  ): Promise<number>;
-
   /**
-   * Read randomAccessFile.
+   * Read text with sync interface.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @param { string } filePath - file path.
+   * @param { ReadTextOptions } [options] - options.
+   * @returns { string } Returns the contents of the read file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -7047,19 +4757,23 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900013 - Bad address
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @crossplatform
+   * @atomicservice
+   * @since 11
    */
-  read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
-
   /**
-   * Read randomAccessFile.
+   * Read text with sync interface.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @param { string } filePath - file path.
+   * @param { ReadTextOptions } [options] - options.
+   * @returns { string } Returns the contents of the read file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -7067,827 +4781,1515 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900013 - Bad address
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
    * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  /**
-  * Read randomAccessFile.
-  *
-  * @param { ArrayBuffer } buffer - buffer.
-  * @param { ReadOptions } [options] - options.
-  * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
-  * @throws { BusinessError } 13900004 - Interrupted system call
-  * @throws { BusinessError } 13900005 - I/O error
-  * @throws { BusinessError } 13900008 - Bad file descriptor
-  * @throws { BusinessError } 13900010 - Try again
-  * @throws { BusinessError } 13900013 - Bad address
-  * @throws { BusinessError } 13900019 - Is a directory
-  * @throws { BusinessError } 13900020 - Invalid argument
-  * @throws { BusinessError } 13900034 - Operation would block
-  * @throws { BusinessError } 13900042 - Unknown error
-  * @syscap SystemCapability.FileManagement.File.FileIO
-  * @since 11
-  */
-  read(
-    buffer: ArrayBuffer,
-    options: ReadOptions,
-    callback: AsyncCallback<number>
-  ): void;
+  function readTextSync(
+    filePath: string,
+    options?: ReadTextOptions
+  ): string;
 
   /**
-   * Read randomAccessFile with sync interface.
+   * Rename file.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 9
    */
   /**
-   * Read randomAccessFile with sync interface.
+   * Rename file.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @since 10
    */
   /**
-   * Read randomAccessFile with sync interface.
+   * Rename file.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
    * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readSync(
-    buffer: ArrayBuffer,
-    options?: ReadOptions
-  ): number;
+  function rename(oldPath: string, newPath: string): Promise<void>;
 
   /**
-   * Generate read stream from RandomAccessFile object.
+   * Rename file.
    *
-   * @returns { ReadStream } Return ReadStream object.
-   * @throws { BusinessError } 401 - Parameter error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @param { AsyncCallback<void> } callback - Returns the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900011 - Out of memory
    * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900042 - Unknown error 
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 9
    */
-  getReadStream(): ReadStream;
-
   /**
-   * Generate write stream from RandomAccessFile object.
+   * Rename file.
    *
-   * @returns { WriteStream } Return WriteStream object.
-   * @throws { BusinessError } 401 - Parameter error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @param { AsyncCallback<void> } callback - Returns the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900011 - Out of memory
    * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900042 - Unknown error 
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @since 10
    */
-  getWriteStream(): WriteStream;
-}
-
-/**
- * File Read Stream.
- * 
- * @extends stream.Readable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare class ReadStream extends stream.Readable {
-  /**
-    * The ReadStream constructor.
-    *
-    * @syscap SystemCapability.FileManagement.File.FileIO
-    * @since 12
-    */
-  constructor();
-
   /**
-   * The Number of bytes read in the stream.
+   * Rename file.
    *
-   * @type { number }
-   * @readonly
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @param { AsyncCallback<void> } callback - Returns the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly bytesRead: number;
+  function rename(oldPath: string, newPath: string, callback: AsyncCallback<void>): void;
 
   /**
-   * The path of the file being read.
+   * Rename file with sync interface.
    *
-   * @type { string }
-   * @readonly
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 9
    */
-  readonly path: string;
-
   /**
-   * Set the file position indicator for the read stream.
+   * Rename file with sync interface.
    *
-   * @param { number } offset - file offset.
-   * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
-   * @returns { number } Returns the offset relative to starting position of stream.
-   * @throws { BusinessError } 401 - Parameter error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900026 - Illegal seek
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @since 10
    */
-  seek(offset: number, whence?: WhenceType): number;
-
   /**
-   * Close ReadStream with sync interface.
+   * Rename file with sync interface.
    *
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } oldPath - oldPath.
+   * @param { string } newPath - newPath.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900016 - Cross-device link
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900028 - Too many links
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  close(): void;
-}
-
-/**
- * File Write Stream.
- * 
- * @extends stream.Writable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare class WriteStream extends stream.Writable {
-  /**
-    * The WriteStream constructor.
-    *
-    * @syscap SystemCapability.FileManagement.File.FileIO
-    * @since 12
-    */
-  constructor();
+  function renameSync(oldPath: string, newPath: string): void;
 
   /**
-   * The Number of bytes written in the stream.
+   * Delete dir.
    *
-   * @type { number }
-   * @readonly
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 9
    */
-  readonly bytesWritten: number;
-
   /**
-   * The path of the file being written.
+   * Delete dir.
    *
-   * @type { string }
-   * @readonly
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @since 10
    */
-  readonly path: string;
-
   /**
-   * Set the file position indicator for the write stream.
+   * Delete dir.
    *
-   * @param { number } offset - file offset.
-   * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
-   * @returns { number } Returns the offset relative to starting position of stream.
-   * @throws { BusinessError } 401 - Parameter error
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900026 - Illegal seek
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  seek(offset: number, whence?: WhenceType): number;
+  function rmdir(path: string): Promise<void>;
 
   /**
-   * Close WriteStream with sync interface.
+   * Delete dir.
    *
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
-   */
-  close(): void;
-}
-
-/**
- * The AtomicFile class provides methods for performing atomic operations on files.
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 15
- */
-export class AtomicFile {
-  /**
-   * The AtomicFile constructor.
-   * @param { string } path file path.
-   * @throws { BusinessError } 401 Parameter error.Possible causes:1.Mandatory parameters are left unspecified; 2.Incorrect parameter types.
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
-   */
-  constructor(path: string);
-
-  /**
-   * Get the File object from AtomicFile object.
-   * @returns { File } Returns the file object.
-   * @throws { BusinessError } 13900002 No such file or directory
-   * @throws { BusinessError } 13900005 IO error
-   * @throws { BusinessError } 13900012 Permission denied
-   * @throws { BusinessError } 13900042 Internal error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
-   */
-  getBaseFile(): File;
-
-  /**
-   * Create the file read stream.
-   * @returns { ReadStream } Returns the file read stream.
-   * @throws { BusinessError } 13900001 Operation not permitted
-   * @throws { BusinessError } 13900002 No such file or directory
-   * @throws { BusinessError } 13900012 Permission denied
-   * @throws { BusinessError } 13900042 Internal error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @since 9
    */
-  openRead(): ReadStream;
-
   /**
-   * Read the entire contents of the file.
-   * @returns { ArrayBuffer } Returns the ArrayBuffer of the file contents.
-   * @throws { BusinessError } 13900005 I/O error
-   * @throws { BusinessError } 13900042 Internal error
+   * Delete dir.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @crossplatform
+   * @since 10
    */
-  readFully(): ArrayBuffer;
-
   /**
-   * Create the file write stream.
-   * @returns { WriteStream } Returns the file write stream.
-   * @throws { BusinessError } 13900001 Operation not permitted
-   * @throws { BusinessError } 13900002 No such file or directory
-   * @throws { BusinessError } 13900012 Permission denied
-   * @throws { BusinessError } 13900027 Read-only file system
-   * @throws { BusinessError } 13900042 Internal error
+   * Delete dir.
+   *
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  startWrite(): WriteStream;
+  function rmdir(path: string, callback: AsyncCallback<void>): void;
 
   /**
-   * If the file is written successfully, the file is closed.
-   * @throws { BusinessError } 13900042 Internal error
+   * Delete dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @since 9
    */
-  finishWrite(): void;
-
   /**
-   * If writing to the file fails, the file is rolled back.
-   * @throws { BusinessError } 13900042 Internal error
+   * Delete dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @crossplatform
+   * @since 10
    */
-  failWrite(): void;
-
   /**
-   * Delete all file.
-   * @throws { BusinessError } 13900001 Operation not permitted
-   * @throws { BusinessError } 13900002 No such file or directory
-   * @throws { BusinessError } 13900012 Permission denied
-   * @throws { BusinessError } 13900027 Read-only file system
-   * @throws { BusinessError } 13900042 Internal error
+   * Delete dir with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system1
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900032 - Directory not empty
+   * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  delete(): void;
-}
+  function rmdirSync(path: string): void;
 
-/**
- * Stat object.
- *
- * @interface Stat
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Stat object.
- *
- * @interface Stat
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Stat object.
- *
- * @interface Stat
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare interface Stat {
   /**
-   * @type { bigint }
-   * @readonly
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { bigint }
-   * @readonly
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
-  readonly ino: bigint;
   /**
-   * @type { number }
-   * @readonly
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function stat(file: string | number): Promise<Stat>;
+
+  /**
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * @type { number }
-   * @readonly
+   * Get file information.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly mode: number;
+  function stat(file: string | number, callback: AsyncCallback<Stat>): void;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Get file information with sync interface.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Stat } Returns the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Get file information with sync interface.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Stat } Returns the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Get file information with sync interface.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @returns { Stat } Returns the Stat object.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly uid: number;
+  function statSync(file: string | number): Stat;
+
   /**
-   * @type { number }
-   * @readonly
+   * Link file.
+   *
+   * @param { string } target - target.
+   * @param { string } srcPath - srcPath.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
+  function symlink(target: string, srcPath: string): Promise<void>;
+
   /**
-   * @type { number }
-   * @readonly
+   * Link file.
+   *
+   * @param { string } target - target.
+   * @param { string } srcPath - srcPath.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly gid: number;
+  function symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;
+
   /**
-   * @type { number }
-   * @readonly
+   * Link file with sync interface.
+   *
+   * @param { string } target - target.
+   * @param { string } srcPath - srcPath.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function symlinkSync(target: string, srcPath: string): void;
+
+  /**
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly size: number;
+  function truncate(file: string | number, len?: number): Promise<void>;
+
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly atime: number;
+  function truncate(file: string | number, callback: AsyncCallback<void>): void;
+
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly mtime: number;
+  function truncate(file: string | number, len: number, callback: AsyncCallback<void>): void;
+
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file with sync interface.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * @type { number }
-   * @readonly
+   * Truncate file with sync interface.
+   *
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
-  readonly ctime: number;
-
-  /**
-   * Returns nanosecond of the access time.
-   * @type { bigint }
-   * @readonly
-   * @throws { BusinessError } 13900042 - Internal error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
-   */
-  readonly atimeNs?:bigint;
-  
-  /**
-   * Returns nanosecond of the modification time.
-   * @type { bigint }
-   * @readonly
-   * @throws { BusinessError } 13900042 - Internal error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
-   */
-  readonly mtimeNs?:bigint;
-
-  /**
-   * Returns nanosecond of the change time.
-   * @type { bigint }
-   * @readonly
-   * @throws { BusinessError } 13900042 - Internal error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 15
-   */
-  readonly ctimeNs?:bigint;
-
   /**
+   * Truncate file with sync interface.
    *
-   * @type { LocationType }
-   * @readonly
+   * @param { string | number } file - path or file descriptor.
+   * @param { number } [len = 0] - len.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900023 - Text file busy
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  readonly location: LocationType;
+  function truncateSync(file: string | number, len?: number): void;
 
   /**
-   * Whether path/fd is block device.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a block device or not.
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * Whether path/fd is block device.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a block device or not.
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
-  isBlockDevice(): boolean;
-  /**
-   * Whether path/fd is character device.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a character device or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
-   * Whether path/fd is character device.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a character device or not.
+   * @param { string } path - path.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  isCharacterDevice(): boolean;
+  function unlink(path: string): Promise<void>;
+
   /**
-   * Whether path/fd is directory.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a directory or not.
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * Whether path/fd is directory.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a directory or not.
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
   /**
-   * Whether path/fd is directory.
+   * Delete file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a directory or not.
+   * @param { string } path - path.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  isDirectory(): boolean;
+  function unlink(path: string, callback: AsyncCallback<void>): void;
+
   /**
-   * Whether path/fd is fifo.
+   * Delete file with sync interface.
    *
-   * @returns { boolean } Returns whether the path/fd point to a fifo file or not.
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * Whether path/fd is fifo.
+   * Delete file with sync interface.
+   *
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * Delete file with sync interface.
    *
-   * @returns { boolean } Returns whether the path/fd point to a fifo file or not.
+   * @param { string } path - path.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900014 - Device or resource busy
+   * @throws { BusinessError } 13900018 - Not a directory
+   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
+   * @throws { BusinessError } 13900030 - File name too long
+   * @throws { BusinessError } 13900033 - Too many symbolic links encountered
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
-   */
-  isFIFO(): boolean;
-  /**
-   * Whether path/fd is file.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a normal file or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
+  function unlinkSync(path: string): void;
+
   /**
-   * Whether path/fd is file.
+   * Change file mtime.
    *
-   * @returns { boolean } Returns whether the path/fd point to a normal file or not.
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } path - path.
+   * @param { number } mtime - last modification time
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 11
    */
   /**
-   * Whether path/fd is file.
+   * Change file mtime.
    *
-   * @returns { boolean } Returns whether the path/fd point to a normal file or not.
-   * @throws { BusinessError } 13900005 - I/O error
+   * @param { string } path - path.
+   * @param { number } mtime - last modification time
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900027 - Read-only file system
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @atomicservice
-   * @since 11
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  isFile(): boolean;
+  function utimes(path: string, mtime: number): void;
+
   /**
-   * Whether path/fd is socket.
+   * Write file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a socket file or not.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
   /**
-   * Whether path/fd is socket.
+   * Write file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a socket file or not.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @since 10
    */
-  isSocket(): boolean;
   /**
-   * Whether path/fd is symbolic link.
+   * Write file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a symbolic link or not.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { WriteOptions } [options] - options.
+   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
+  function write(
+    fd: number,
+    buffer: ArrayBuffer | string,
+    options?: WriteOptions
+  ): Promise<number>;
+
   /**
-   * Whether path/fd is symbolic link.
+   * Write file.
    *
-   * @returns { boolean } Returns whether the path/fd point to a symbolic link or not.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
+   * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 9
    */
-  isSymbolicLink(): boolean;
-}
-
-/**
- * Stream object
- *
- * @interface Stream
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare interface Stream {
   /**
-   * Close stream.
+   * Write file.
    *
-   * @returns { Promise<void> } The promise returned by the function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 10
    */
-  close(): Promise<void>;
-
   /**
-   * Close stream.
+   * Write file.
    *
-   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  close(callback: AsyncCallback<void>): void;
+  function write(fd: number, buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
 
   /**
-   * Close stream with sync interface.
+   * Write file.
    *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+   * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
+   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900013 - Bad address
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900024 - File too large
    * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
-  closeSync(): void;
-
   /**
-   * Flush stream.
+   * Write file.
    *
-   * @returns { Promise<void> } The promise returned by the function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { object } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7901,14 +6303,16 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 10
    */
-  flush(): Promise<void>;
-
   /**
-   * Flush stream.
+   * Write file.
    *
-   * @param { AsyncCallback<void> } callback - Return the callback function.
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { WriteOptions } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7922,13 +6326,25 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  flush(callback: AsyncCallback<void>): void;
+  function write(
+    fd: number,
+    buffer: ArrayBuffer | string,
+    options: WriteOptions,
+    callback: AsyncCallback<number>
+  ): void;
 
   /**
-   * Flush stream with sync interface.
+   * Write file with sync interface.
    *
+   * @param { number } fd - file descriptor.
+   * @param { ArrayBuffer | string } buffer - buffer.
+   * @param { object } [options] - options.
+   * @returns { number } Returns the number of bytes written to the file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7944,14 +6360,13 @@ declare interface Stream {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
-  flushSync(): void;
-
   /**
-   * Write stream.
+   * Write file with sync interface.
    *
+   * @param { number } fd - file descriptor.
    * @param { ArrayBuffer | string } buffer - buffer.
    * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
+   * @returns { number } Returns the number of bytes written to the file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7965,14 +6380,16 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 10
    */
   /**
-   * Write stream.
+   * Write file with sync interface.
    *
+   * @param { number } fd - file descriptor.
    * @param { ArrayBuffer | string } buffer - buffer.
    * @param { WriteOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
+   * @returns { number } Returns the number of bytes written to the file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7986,310 +6403,2360 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  write(
+  function writeSync(
+    fd: number,
     buffer: ArrayBuffer | string,
     options?: WriteOptions
-  ): Promise<number>;
+  ): number;
+
+  /**
+   * Set extended attributes information of the file.
+   *
+   * @param { string } path - path.
+   * @param { string } key - the key of extended attribute.
+   * @param { string } value - the value of extended attribute.
+   * @returns { Promise<void> } The promise returned by the function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function setxattr(path: string, key: string, value: string): Promise<void>;
+
+  /**
+   * Set extended attributes information of the file.
+   *
+   * @param { string } path - path.
+   * @param { string } key - the key of extended attribute.
+   * @param { string } value - the value of extended attribute.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900020 - Invalid argument
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900041 - Quota exceeded
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function setxattrSync(path: string, key: string, value: string): void;
+
+  /**
+   * Get extended attributes information of the file.
+   *
+   * @param { string } path - path.
+   * @param { string } key - the key of extended attribute.
+   * @returns { Promise<string> } The promise returned by the function.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900007 - Arg list too long
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900037 - No data available
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function getxattr(path: string, key: string): Promise<string>;
+
+  /**
+   * Get extended attributes information of the file with sync interface.
+   *
+   * @param { string } path - path.
+   * @param { string } key - the key of extended attribute.
+   * @returns { string } Return the value of extended attribute.
+   * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameter types.
+   * @throws { BusinessError } 13900002 - No such file or directory
+   * @throws { BusinessError } 13900007 - Arg list too long
+   * @throws { BusinessError } 13900012 - Permission denied
+   * @throws { BusinessError } 13900031 - Function not implemented
+   * @throws { BusinessError } 13900037 - No data available
+   * @throws { BusinessError } 13900038 - Value too large for defined data type
+   * @throws { BusinessError } 13900042 - Unknown error
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  function getxattrSync(path: string, key: string): string;
+  // function end
+
+  /**
+   * Progress data of copyFile
+   *
+   * @typedef Progress
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface Progress {
+    /**
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly processedSize: number;
+
+    /**
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly totalSize: number;
+  }
+
+  /**
+   * Task signal.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   * @arkts 1.2
+   */
+  class TaskSignal {
+    /**
+     * Cancel the copy task in progress.
+     *
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900012 - Permission denied by the file system
+     * @throws { BusinessError } 13900043 - No task can be canceled.
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    cancel(): void;
+
+    /**
+     * Subscribe the cancel event of current task.
+     *
+     * @returns { Promise<string> } Return the result of the cancel event.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    onCancel(): Promise<string>;
+  }
+
+  /**
+   * Get options of copy
+   *
+   * @typedef CopyOptions
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   * @arkts 1.2
+   */
+  interface CopyOptions {
+    /**
+     * Listener of copy progress
+     *
+     * @type { ?ProgressListener }
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    progressListener?: ProgressListener;
+    /**
+     * Cancel signal of copy.
+     *
+     * @type { ?TaskSignal }
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    copySignal?: TaskSignal;
+  }
+
+  /**
+   * Listener of copy progress.
+   *
+   * @typedef { function } ProgressListener
+   * @param { Progress } progress - indicates the progress data of copyFile
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  type ProgressListener = (progress: Progress) => void;
+
+  /**
+   * File object.
+   *
+   * @interface File
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 9
+   */
+  /**
+   * File object.
+   *
+   * @interface File
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @since 10
+   */
+  /**
+   * File object.
+   *
+   * @interface File
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface File {
+    /**
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly fd: number;
+
+    /**
+     * File path
+     * 
+     * @type { string }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 14300002 - Invalid URI
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly path: string;
+
+    /**
+     * File name
+     * 
+     * @type { string }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly name: string;
+
+    /**
+     * Get parent path of file.
+     *
+     * @returns { string } Return the parent path of file.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 14300002 - Invalid URI
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    getParent(): string;
+
+    /**
+     * Lock file with blocking method.
+     *
+     * @param { boolean } exclusive - whether lock is exclusive.
+     * @returns { Promise<void> } The promise returned by the function.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900043 - No record locks available
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    lock(exclusive?: boolean): Promise<void>;
+
+    /**
+     * Lock file with blocking method.
+     *
+     * @param { AsyncCallback<void> } callback - Return the callback function.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900043 - No record locks available
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    lock(callback: AsyncCallback<void>): void;
+
+    /**
+     * Lock file with blocking method.
+     *
+     * @param { boolean } exclusive - whether lock is exclusive.
+     * @param { AsyncCallback<void> } callback - Return the callback function.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900043 - No record locks available
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    lock(exclusive: boolean, callback: AsyncCallback<void>): void;
+
+    /**
+     * Try to lock file with returning results immediately.
+     *
+     * @param { boolean } exclusive - whether lock is exclusive.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900043 - No record locks available
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    tryLock(exclusive?: boolean): void;
+
+    /**
+     * Unlock file.
+     *
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900043 - No record locks available
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    unlock(): void;
+  }
+
+  /**
+   * RandomAccessFile object.
+   *
+   * @interface RandomAccessFile
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface RandomAccessFile {
+
+    /**
+     * File descriptor
+     *
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly fd: number;
+
+    /**
+     * File pointer
+     *
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly filePointer: number;
+
+    /**
+     * Set file pointer.
+     *
+     * @param { number } filePointer - filePointer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    setFilePointer(filePointer: number): void;
+
+    /**
+     * Close randomAccessFile with sync interface.
+     *
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    close(): void;
+
+    /**
+     * Write randomAccessFile.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+     * Write randomAccessFile.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(
+      buffer: ArrayBuffer | string,
+      options?: WriteOptions
+    ): Promise<number>;
+
+    /**
+     * Write randomAccessFile.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+
+    /**
+     * Write randomAccessFile.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+     * Write randomAccessFile.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(
+      buffer: ArrayBuffer | string,
+      options: WriteOptions,
+      callback: AsyncCallback<number>
+    ): void;
+
+    /**
+     * Write randomAccessFile with sync interface.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { number } Returns the number of bytes written to the file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+     * Write randomAccessFile with sync interface.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @returns { number } Returns the number of bytes written to the file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    writeSync(
+      buffer: ArrayBuffer | string,
+      options?: WriteOptions
+    ): number;
+
+    /**
+     * Read randomAccessFile.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+     * Read randomAccessFile.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 11
+     */
+    /**
+     * Read randomAccessFile.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900044 - Network is unreachable
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    read(
+      buffer: ArrayBuffer,
+      options?: ReadOptions
+    ): Promise<number>;
+
+    /**
+     * Read randomAccessFile.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
+
+    /**
+     * Read randomAccessFile.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+    * Read randomAccessFile.
+    *
+    * @param { ArrayBuffer } buffer - buffer.
+    * @param { ReadOptions } [options] - options.
+    * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+    * @throws { BusinessError } 13900004 - Interrupted system call
+    * @throws { BusinessError } 13900005 - I/O error
+    * @throws { BusinessError } 13900008 - Bad file descriptor
+    * @throws { BusinessError } 13900010 - Try again
+    * @throws { BusinessError } 13900013 - Bad address
+    * @throws { BusinessError } 13900019 - Is a directory
+    * @throws { BusinessError } 13900020 - Invalid argument
+    * @throws { BusinessError } 13900034 - Operation would block
+    * @throws { BusinessError } 13900042 - Unknown error
+    * @syscap SystemCapability.FileManagement.File.FileIO
+    * @since {'1.1':'11', '1.2':'20'}
+    * @arkts 1.1&1.2
+    */
+    read(
+      buffer: ArrayBuffer,
+      options: ReadOptions,
+      callback: AsyncCallback<number>
+    ): void;
+
+    /**
+     * Read randomAccessFile with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { number } Returns the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 10
+     */
+    /**
+     * Read randomAccessFile with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { number } Returns the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 11
+     */
+    /**
+     * Read randomAccessFile with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { number } Returns the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900044 - Network is unreachable
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readSync(
+      buffer: ArrayBuffer,
+      options?: ReadOptions
+    ): number;
+
+    /**
+     * Generate read stream from RandomAccessFile object.
+     *
+     * @returns { ReadStream } Return ReadStream object.
+     * @throws { BusinessError } 401 - Parameter error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900011 - Out of memory
+     * @throws { BusinessError } 13900012 - Permission denied
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900042 - Unknown error 
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    getReadStream(): ReadStream;
+
+    /**
+     * Generate write stream from RandomAccessFile object.
+     *
+     * @returns { WriteStream } Return WriteStream object.
+     * @throws { BusinessError } 401 - Parameter error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900011 - Out of memory
+     * @throws { BusinessError } 13900012 - Permission denied
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900042 - Unknown error 
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    getWriteStream(): WriteStream;
+  }
+
+  /**
+   * File Read Stream.
+   * 
+   * @extends stream.Readable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  class ReadStream extends stream.Readable {
+    /**
+      * The ReadStream constructor.
+      *
+      * @syscap SystemCapability.FileManagement.File.FileIO
+      * @since {'1.1':'12', '1.2':'20'}
+      * @arkts 1.1&1.2
+      */
+    constructor();
+
+    /**
+     * The Number of bytes read in the stream.
+     *
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly bytesRead: number;
+
+    /**
+     * The path of the file being read.
+     *
+     * @type { string }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly path: string;
+
+    /**
+     * Set the file position indicator for the read stream.
+     *
+     * @param { number } offset - file offset.
+     * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
+     * @returns { number } Returns the offset relative to starting position of stream.
+     * @throws { BusinessError } 401 - Parameter error
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900026 - Illegal seek
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    seek(offset: number, whence?: WhenceType): number;
+
+    /**
+     * Close ReadStream with sync interface.
+     *
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    close(): void;
+  }
+
+  /**
+   * File Write Stream.
+   * 
+   * @extends stream.Writable
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  class WriteStream extends stream.Writable {
+    /**
+      * The WriteStream constructor.
+      *
+      * @syscap SystemCapability.FileManagement.File.FileIO
+      * @since {'1.1':'12', '1.2':'20'}
+      * @arkts 1.1&1.2
+      */
+    constructor();
+
+    /**
+     * The Number of bytes written in the stream.
+     *
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly bytesWritten: number;
+
+    /**
+     * The path of the file being written.
+     *
+     * @type { string }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly path: string;
+
+    /**
+     * Set the file position indicator for the write stream.
+     *
+     * @param { number } offset - file offset.
+     * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
+     * @returns { number } Returns the offset relative to starting position of stream.
+     * @throws { BusinessError } 401 - Parameter error
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900026 - Illegal seek
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    seek(offset: number, whence?: WhenceType): number;
+
+    /**
+     * Close WriteStream with sync interface.
+     *
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    close(): void;
+  }
 
   /**
-   * Write stream.
+   * The AtomicFile class provides methods for performing atomic operations on files.
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   * @arkts 1.2
+   */
+  class AtomicFile {
+    /**
+     * The AtomicFile constructor.
+     * @param { string } path file path.
+     * @throws { BusinessError } 401 Parameter error.Possible causes:1.Mandatory parameters are left unspecified; 2.Incorrect parameter types.
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    constructor(path: string);
+
+    /**
+     * Get the File object from AtomicFile object.
+     * @returns { File } Returns the file object.
+     * @throws { BusinessError } 13900002 No such file or directory
+     * @throws { BusinessError } 13900005 IO error
+     * @throws { BusinessError } 13900012 Permission denied
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    getBaseFile(): File;
+
+    /**
+     * Create the file read stream.
+     * @returns { ReadStream } Returns the file read stream.
+     * @throws { BusinessError } 13900001 Operation not permitted
+     * @throws { BusinessError } 13900002 No such file or directory
+     * @throws { BusinessError } 13900012 Permission denied
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    openRead(): ReadStream;
+
+    /**
+     * Read the entire contents of the file.
+     * @returns { ArrayBuffer } Returns the ArrayBuffer of the file contents.
+     * @throws { BusinessError } 13900005 I/O error
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    readFully(): ArrayBuffer;
+
+    /**
+     * Create the file write stream.
+     * @returns { WriteStream } Returns the file write stream.
+     * @throws { BusinessError } 13900001 Operation not permitted
+     * @throws { BusinessError } 13900002 No such file or directory
+     * @throws { BusinessError } 13900012 Permission denied
+     * @throws { BusinessError } 13900027 Read-only file system
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    startWrite(): WriteStream;
+
+    /**
+     * If the file is written successfully, the file is closed.
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    finishWrite(): void;
+
+    /**
+     * If writing to the file fails, the file is rolled back.
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    failWrite(): void;
+
+    /**
+     * Delete all file.
+     * @throws { BusinessError } 13900001 Operation not permitted
+     * @throws { BusinessError } 13900002 No such file or directory
+     * @throws { BusinessError } 13900012 Permission denied
+     * @throws { BusinessError } 13900027 Read-only file system
+     * @throws { BusinessError } 13900042 Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    delete(): void;
+  }
+
+  /**
+   * Stat object.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @interface Stat
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 9
    */
-  write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
-
   /**
-   * Write stream.
+   * Stat object.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @interface Stat
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 10
    */
   /**
-   * Write stream.
+   * Stat object.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @interface Stat
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  write(
-    buffer: ArrayBuffer | string,
-    options: WriteOptions,
-    callback: AsyncCallback<number>
-  ): void;
+   * @crossplatform
+   * @atomicservice
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface Stat {
+    /**
+     * @type { bigint }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { bigint }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly ino: bigint;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly mode: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly uid: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly gid: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly size: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly atime: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly mtime: number;
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * @type { number }
+     * @readonly
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly ctime: number;
+
+    /**
+     * Returns nanosecond of the access time.
+     * @type { bigint }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'15', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly atimeNs?:bigint;
+    
+    /**
+     * Returns nanosecond of the modification time.
+     * @type { bigint }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'15', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly mtimeNs?:bigint;
+
+    /**
+     * Returns nanosecond of the change time.
+     * @type { bigint }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Internal error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'15', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly ctimeNs?:bigint;
+
+    /**
+     *
+     * @type { LocationType }
+     * @readonly
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readonly location: LocationType;
+
+    /**
+     * Whether path/fd is block device.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a block device or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is block device.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a block device or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isBlockDevice(): boolean;
+    /**
+     * Whether path/fd is character device.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a character device or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is character device.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a character device or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isCharacterDevice(): boolean;
+    /**
+     * Whether path/fd is directory.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a directory or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is directory.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a directory or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * Whether path/fd is directory.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a directory or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isDirectory(): boolean;
+    /**
+     * Whether path/fd is fifo.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a fifo file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is fifo.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a fifo file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isFIFO(): boolean;
+    /**
+     * Whether path/fd is file.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a normal file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is file.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a normal file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since 10
+     */
+    /**
+     * Whether path/fd is file.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a normal file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @atomicservice
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isFile(): boolean;
+    /**
+     * Whether path/fd is socket.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a socket file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is socket.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a socket file or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isSocket(): boolean;
+    /**
+     * Whether path/fd is symbolic link.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a symbolic link or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Whether path/fd is symbolic link.
+     *
+     * @returns { boolean } Returns whether the path/fd point to a symbolic link or not.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @crossplatform
+     * @since {'1.1':'10', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    isSymbolicLink(): boolean;
+  }
 
   /**
-   * Write stream with sync interface.
+   * Stream object
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes written to file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @interface Stream
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface Stream {
+    /**
+     * Close stream.
+     *
+     * @returns { Promise<void> } The promise returned by the function.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    close(): Promise<void>;
+
+    /**
+     * Close stream.
+     *
+     * @param { AsyncCallback<void> } callback - Return the callback function.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    close(callback: AsyncCallback<void>): void;
+
+    /**
+     * Close stream with sync interface.
+     *
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    closeSync(): void;
+
+    /**
+     * Flush stream.
+     *
+     * @returns { Promise<void> } The promise returned by the function.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    flush(): Promise<void>;
+
+    /**
+     * Flush stream.
+     *
+     * @param { AsyncCallback<void> } callback - Return the callback function.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    flush(callback: AsyncCallback<void>): void;
+
+    /**
+     * Flush stream with sync interface.
+     *
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    flushSync(): void;
+
+    /**
+     * Write stream.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Write stream.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(
+      buffer: ArrayBuffer | string,
+      options?: WriteOptions
+    ): Promise<number>;
+
+    /**
+     * Write stream.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+
+    /**
+     * Write stream.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Write stream.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    write(
+      buffer: ArrayBuffer | string,
+      options: WriteOptions,
+      callback: AsyncCallback<number>
+    ): void;
+
+    /**
+     * Write stream with sync interface.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { number } Returns the number of file bytes written to file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Write stream with sync interface.
+     *
+     * @param { ArrayBuffer | string } buffer - buffer.
+     * @param { WriteOptions } [options] - options.
+     * @returns { number } Returns the number of file bytes written to file.
+     * @throws { BusinessError } 13900001 - Operation not permitted
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900024 - File too large
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900041 - Quota exceeded
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    writeSync(
+      buffer: ArrayBuffer | string,
+      options?: WriteOptions
+    ): number;
+
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 11
+     */
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900044 - Network is unreachable
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    read(
+      buffer: ArrayBuffer,
+      options?: ReadOptions
+    ): Promise<number>;
+
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'9', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
+
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Read stream.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    read(
+      buffer: ArrayBuffer,
+      options: ReadOptions,
+      callback: AsyncCallback<number>
+    ): void;
+
+    /**
+     * Read stream with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { object } [options] - options.
+     * @returns { number } Returns the number of file bytes read to file.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     */
+    /**
+     * Read stream with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { number } Returns the number of file bytes read to file.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 11
+     */
+    /**
+     * Read stream with sync interface.
+     *
+     * @param { ArrayBuffer } buffer - buffer.
+     * @param { ReadOptions } [options] - options.
+     * @returns { number } Returns the number of file bytes read to file.
+     * @throws { BusinessError } 13900004 - Interrupted system call
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900010 - Try again
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900019 - Is a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900034 - Operation would block
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @throws { BusinessError } 13900044 - Network is unreachable
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    readSync(
+      buffer: ArrayBuffer,
+      options?: ReadOptions
+    ): number;
+  }
+
+  /**
+   * Watcher object
+   *
+   * @interface Watcher
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   * @arkts 1.2
+   */
+  interface Watcher {
+    /**
+     * Start watcher.
+     *
+     * @throws { BusinessError } 13900002 - No such file or directory
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900011 - Out of memory
+     * @throws { BusinessError } 13900012 - Permission denied
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900015 - File exists
+     * @throws { BusinessError } 13900018 - Not a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900021 - File table overflow
+     * @throws { BusinessError } 13900022 - Too many open files
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900030 - File name too long
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    start(): void;
+
+    /**
+     * Stop watcher.
+     *
+     * @throws { BusinessError } 13900002 - No such file or directory
+     * @throws { BusinessError } 13900008 - Bad file descriptor
+     * @throws { BusinessError } 13900011 - Out of memory
+     * @throws { BusinessError } 13900012 - Permission denied
+     * @throws { BusinessError } 13900013 - Bad address
+     * @throws { BusinessError } 13900015 - File exists
+     * @throws { BusinessError } 13900018 - Not a directory
+     * @throws { BusinessError } 13900020 - Invalid argument
+     * @throws { BusinessError } 13900021 - File table overflow
+     * @throws { BusinessError } 13900022 - Too many open files
+     * @throws { BusinessError } 13900025 - No space left on device
+     * @throws { BusinessError } 13900030 - File name too long
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 20
+     * @arkts 1.2
+     */
+    stop(): void;
+  }
+
+  /**
+   * ReaderIterator object
+   *
+   * @interface ReaderIterator
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  interface ReaderIterator {
+    /**
+     * Get next result from the iterator.
+     *
+     * @returns { ReaderIteratorResult } Returns the result of reader iterator.
+     * @throws { BusinessError } 13900005 - I/O error
+     * @throws { BusinessError } 13900037 - No data available
+     * @throws { BusinessError } 13900042 - Unknown error
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    next(): ReaderIteratorResult;
+  }
+
+  /**
+   * Enumeration of different types of whence.
+   *
+   * @enum { number } whence type
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  enum WhenceType {
+    /**
+     * Starting position of the file offset.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    SEEK_SET = 0,
+
+    /**
+     * Current position of the file offset.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    SEEK_CUR = 1,
+
+    /**
+     * Ending position of the file offset.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    SEEK_END = 2,
+  }
+
+  /**
+   * Enumeration of different types of file location.
+   *
+   * @enum { number } location type
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  enum LocationType {
+    /**
+     * Local file.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    LOCAL = 1 << 0,
+
+    /**
+     * Cloud file.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    CLOUD = 1 << 1,
+  }
+
+  /**
+   * Enumeration of different types of access mode.
+   *
+   * @enum { number } access mode type
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
+   * @atomicservice
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  enum AccessModeType {
+    /**
+     * Check if the file exists.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @atomicservice
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    EXIST = 0,
+
+    /**
+     * Check if the file has write permission.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @atomicservice
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    WRITE = 2,
+
+    /**
+     * Check if the file has read permission.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @atomicservice
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    READ = 4,
+
+    /**
+     * Check if the file has read and write permission.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @atomicservice
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    READ_WRITE = 6,
+  }
+
   /**
-   * Write stream with sync interface.
+   * Enumeration of different types of access flag.
+   *
+   * @enum { number } access flag type
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  enum AccessFlagType {
+    /**
+     * Check if the file is on the local.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
+    LOCAL = 0,
+  }
+}
+
+/**
+ * Task signal.
+ * @typedef { fileIo.TaskSignal }
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ * @arkts 1.2
+ */
+type TaskSignal = fileIo.TaskSignal;
+
+/**
+ * The AtomicFile class provides methods for performing atomic operations on files.
+ * @typedef { fileIo.AtomicFile }
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ * @arkts 1.2
+ */
+type AtomicFile = fileIo.AtomicFile;
+
+/**
+ * Watcher object
+ * @typedef { fileIo.Watcher }
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ * @arkts 1.2
+ */
+type Watcher = fileIo.Watcher;
+
+/**
+ * Get options of copy
+ *
+ * @typedef { fileIo.CopyOptions }
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ * @arkts 1.2
+ */
+type CopyOptions = fileIo.CopyOptions;
+
+/**
+ * Task signal.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 12
+ */
+class TaskSignal {
+  /**
+   * Cancel the copy task in progress.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes written to file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900012 - Permission denied by the file system
+   * @throws { BusinessError } 13900043 - No task can be canceled.
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 12
    */
-  writeSync(
-    buffer: ArrayBuffer | string,
-    options?: WriteOptions
-  ): number;
+  cancel(): void;
 
   /**
-   * Read stream.
+   * Subscribe the cancel event of current task.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+   * @returns { Promise<string> } Return the result of the cancel event.
    * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 12
    */
+  onCancel(): Promise<string>;
+}
+
+/**
+ * The AtomicFile class provides methods for performing atomic operations on files.
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 15
+ */
+class AtomicFile {
   /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * The AtomicFile constructor.
+   * @param { string } path file path.
+   * @throws { BusinessError } 401 Parameter error.Possible causes:1.Mandatory parameters are left unspecified; 2.Incorrect parameter types.
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 15
    */
+  constructor(path: string);
+
   /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900044 - Network is unreachable
+   * Get the File object from AtomicFile object.
+   * @returns { File } Returns the file object.
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900005 IO error
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 15
    */
-  read(
-    buffer: ArrayBuffer,
-    options?: ReadOptions
-  ): Promise<number>;
+  getBaseFile(): File;
 
   /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Create the file read stream.
+   * @returns { ReadStream } Returns the file read stream.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 15
    */
-  read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
+  openRead(): ReadStream;
 
   /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Read the entire contents of the file.
+   * @returns { ArrayBuffer } Returns the ArrayBuffer of the file contents.
+   * @throws { BusinessError } 13900005 I/O error
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 15
    */
+  readFully(): ArrayBuffer;
+
   /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Create the file write stream.
+   * @returns { WriteStream } Returns the file write stream.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900027 Read-only file system
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 15
    */
-  read(
-    buffer: ArrayBuffer,
-    options: ReadOptions,
-    callback: AsyncCallback<number>
-  ): void;
+  startWrite(): WriteStream;
 
   /**
-   * Read stream with sync interface.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * If the file is written successfully, the file is closed.
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 15
    */
+  finishWrite(): void;
+
   /**
-   * Read stream with sync interface.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
+   * If writing to the file fails, the file is rolled back.
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 15
    */
+  failWrite(): void;
+
   /**
-   * Read stream with sync interface.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900044 - Network is unreachable
+   * Delete all file.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900027 Read-only file system
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 15
    */
-  readSync(
-    buffer: ArrayBuffer,
-    options?: ReadOptions
-  ): number;
+  delete(): void;
 }
 
 /**
@@ -8299,7 +8766,7 @@ declare interface Stream {
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 10
  */
-export interface WatchEventListener {
+interface WatchEventListener {
   /**
    * Specifies the callback function to be invoked.
    *
@@ -8315,16 +8782,18 @@ export interface WatchEventListener {
  *
  * @interface WatchEvent
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
+ * @since {'1.1':'10', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface WatchEvent {
+interface WatchEvent {
   /**
    * File name.
    *
    * @type { string }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   readonly fileName: string;
 
@@ -8334,7 +8803,8 @@ export interface WatchEvent {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   readonly event: number;
 
@@ -8344,7 +8814,8 @@ export interface WatchEvent {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   readonly cookie: number;
 }
@@ -8356,7 +8827,7 @@ export interface WatchEvent {
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 10
  */
-export interface Watcher {
+interface Watcher {
   /**
    * Start watcher.
    *
@@ -8405,15 +8876,17 @@ export interface Watcher {
  *
  * @interface ReaderIteratorResult
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ReaderIteratorResult {
+interface ReaderIteratorResult {
   /**
    * Whether reader iterator completes the traversal.
    * 
    * @type { boolean }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   done: boolean;
 
@@ -8422,32 +8895,39 @@ export interface ReaderIteratorResult {
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   value: string;
 }
 
 /**
- * ReaderIterator object
+ * Get options of copy
  *
- * @interface ReaderIterator
+ * @typedef CopyOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 11
  */
-declare interface ReaderIterator {
+interface CopyOptions {
   /**
-   * Get next result from the iterator.
+   * Listener of copy progress
    *
-   * @returns { ReaderIteratorResult } Returns the result of reader iterator.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900037 - No data available
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @type { ?ProgressListener }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 11
    */
-  next(): ReaderIteratorResult;
+  progressListener?: ProgressListener;
+  /**
+   * Cancel signal of copy.
+   *
+   * @type { ?TaskSignal }
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 12
+   */
+  copySignal?: TaskSignal;
 }
 
+
 /**
  * File filter type
  *
@@ -8462,9 +8942,10 @@ declare interface ReaderIterator {
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface Filter {
+interface Filter {
   /**
    * The suffix of the file.
    * 
@@ -8479,7 +8960,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   suffix?: Array<string>;
   /**
@@ -8496,7 +8978,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   displayName?: Array<string>;
   /**
@@ -8513,7 +8996,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   mimeType?: Array<string>;
   /**
@@ -8530,7 +9014,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   fileSizeOver?: number;
   /**
@@ -8547,7 +9032,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   lastModifiedAfter?: number;
   /**
@@ -8564,7 +9050,8 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   excludeMedia?: boolean;
 }
@@ -8580,9 +9067,10 @@ export interface Filter {
  *
  * @interface ConflictFiles
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ConflictFiles {
+interface ConflictFiles {
   /**
    * The path of the source file.
    * 
@@ -8595,7 +9083,8 @@ export interface ConflictFiles {
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   srcFile: string;
 
@@ -8611,7 +9100,8 @@ export interface ConflictFiles {
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   destFile: string;
 }
@@ -8621,15 +9111,17 @@ export interface ConflictFiles {
  *
  * @interface Options
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface Options {
+interface Options {
   /**
    * The encoding style.
    * 
    * @type { ?string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   encoding?: string;
 }
@@ -8640,16 +9132,18 @@ export interface Options {
  * @interface ReadOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ReadOptions {
+interface ReadOptions {
   /**
    * The offset when reading the file.
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   offset?: number;
   /**
@@ -8658,7 +9152,8 @@ export interface ReadOptions {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   length?: number;
 }
@@ -8670,16 +9165,18 @@ export interface ReadOptions {
  * @interface ReadTextOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ReadTextOptions extends ReadOptions {
+interface ReadTextOptions extends ReadOptions {
   /**
    * The encoding style when reading text.
    * 
    * @type { ?string }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   encoding?: string;
 }
@@ -8691,16 +9188,18 @@ export interface ReadTextOptions extends ReadOptions {
  * @interface WriteOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface WriteOptions extends Options {
+interface WriteOptions extends Options {
   /**
    * The offset when writing the file.
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   offset?: number;
   /**
@@ -8709,7 +9208,8 @@ export interface WriteOptions extends Options {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   length?: number;
 }
@@ -8720,16 +9220,18 @@ export interface WriteOptions extends Options {
  * @interface ListFileOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ListFileOptions {
+interface ListFileOptions {
   /**
    * Whether to recursively list files.
    * 
    * @type { ?boolean }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   recursion?: boolean;
 
@@ -8739,7 +9241,8 @@ export interface ListFileOptions {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   listNum?: number;
 
@@ -8749,7 +9252,8 @@ export interface ListFileOptions {
    * @type { ?Filter }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   filter?: Filter;
 }
@@ -8759,15 +9263,17 @@ export interface ListFileOptions {
  *
  * @interface RandomAccessFileOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface RandomAccessFileOptions {
+interface RandomAccessFileOptions {
   /**
    * The starting position of file offset.
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   start?: number;
 
@@ -8776,7 +9282,8 @@ export interface RandomAccessFileOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   end?: number;
 }
@@ -8786,15 +9293,17 @@ export interface RandomAccessFileOptions {
  *
  * @interface ReadStreamOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12 
+ * @since {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface ReadStreamOptions {
+interface ReadStreamOptions {
   /**
    * The starting range for reading a file by stream.
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   start?: number;
 
@@ -8803,7 +9312,8 @@ export interface ReadStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   end?: number;
 }
@@ -8813,15 +9323,17 @@ export interface ReadStreamOptions {
  *
  * @interface WriteStreamOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12 
+ * @since {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export interface WriteStreamOptions {
+interface WriteStreamOptions {
   /**
    * The mode for creating write stream.
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   mode?: number;
   /**
@@ -8829,147 +9341,62 @@ export interface WriteStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   start?: number;
 }
 
 /**
- * The listeners of Distributed File System.
+ * Connect Distributed File System.
  *
- * @typedef DfsListeners
+ * @permission ohos.permission.DISTRIBUTED_DATASYNC
+ * @param { string } networkId - The networkId of device.
+ * @param { DfsListeners } listeners - The listeners of Distributed File System.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 201 - Permission denied.
+ * @throws { BusinessError } 401 - The parameter check failed.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
+ * @throws { BusinessError } 13900045 - Connection failed.
+ * @throws { BusinessError } 13900046 - Software caused connection abort.
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 12
  */
-export interface DfsListeners {
-  /**
-   * The Listener of Distributed File System status
-   *
-   * @param { string } networkId - The networkId of device.
-   * @param { number } status - The status code of Distributed File System.
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
-   */
-  onStatus(networkId: string, status: number): void;
-}
-
-/**
- * Enumeration of different types of whence.
- *
- * @enum { number } whence type
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare enum WhenceType {
-  /**
-   * Starting position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_SET = 0,
-
-  /**
-   * Current position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_CUR = 1,
-
-  /**
-   * Ending position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_END = 2,
-}
-
-/**
- * Enumeration of different types of file location.
- *
- * @enum { number } location type
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare enum LocationType {
-  /**
-   * Local file.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  LOCAL = 1 << 0,
-
-  /**
-   * Cloud file.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  CLOUD = 1 << 1,
-}
+declare function connectDfs(networkId: string, listeners: DfsListeners): Promise<void>;
 
 /**
- * Enumeration of different types of access mode.
+ * Disconnect Distributed File System.
  *
- * @enum { number } access mode type
+ * @permission ohos.permission.DISTRIBUTED_DATASYNC
+ * @param { string } networkId - The networkId of device.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 201 - Permission denied.
+ * @throws { BusinessError } 401 - The parameter check failed.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
+ * @throws { BusinessError } 13600004 - Unmount failed.
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
  * @since 12
  */
-declare enum AccessModeType {
-  /**
-   * Check if the file exists.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  EXIST = 0,
-
-  /**
-   * Check if the file has write permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  WRITE = 2,
-
-  /**
-   * Check if the file has read permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  READ = 4,
+declare function disconnectDfs(networkId: string): Promise<void>;
 
-  /**
-   * Check if the file has read and write permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  READ_WRITE = 6,
-}
 
 /**
- * Enumeration of different types of access flag.
+ * The listeners of Distributed File System.
  *
- * @enum { number } access flag type
+ * @typedef DfsListeners
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 12
  */
-declare enum AccessFlagType {
+interface DfsListeners {
   /**
-   * Check if the file is on the local.
+   * The Listener of Distributed File System status
    *
+   * @param { string } networkId - The networkId of device.
+   * @param { number } status - The status code of Distributed File System.
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @since 12
    */
-  LOCAL = 0,
+  onStatus(networkId: string, status: number): void;
 }
+
+export default fileIo;
\ No newline at end of file
diff --git a/api/@ohos.file.hash.d.ts b/api/@ohos.file.hash.d.ts
index bd9f4e28b30543ef302d3e9b8c81bb1271c3e8f0..700e97c301fe432908d66439a127057cd2e5792c 100644
--- a/api/@ohos.file.hash.d.ts
+++ b/api/@ohos.file.hash.d.ts
@@ -34,7 +34,8 @@ import stream from './@ohos.util.stream';
  * @namespace hash
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace hash {
   /**
@@ -58,7 +59,8 @@ declare namespace hash {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function hash(path: string, algorithm: string): Promise<string>;
 
@@ -83,7 +85,8 @@ declare namespace hash {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function hash(path: string, algorithm: string, callback: AsyncCallback<string>): void;
 
@@ -92,7 +95,8 @@ declare namespace hash {
    * 
    * @extends stream.Transform
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   class HashStream extends stream.Transform {
     /**
@@ -102,7 +106,8 @@ declare namespace hash {
      * @throws { BusinessError } 401 - Parameter error
      * @throws { BusinessError } 13900042 - Unknown error
      * @syscap SystemCapability.FileManagement.File.FileIO
-     * @since 12
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     digest(): string;
 
@@ -113,7 +118,8 @@ declare namespace hash {
      * @throws { BusinessError } 401 - Parameter error
      * @throws { BusinessError } 13900042 - Unknown error
      * @syscap SystemCapability.FileManagement.File.FileIO
-     * @since 12
+     * @since {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     update(data: ArrayBuffer): void;
   }
@@ -127,7 +133,8 @@ declare namespace hash {
   * @throws { BusinessError } 13900020 - Invalid argument
   * @throws { BusinessError } 13900042 - Unknown error 
   * @syscap SystemCapability.FileManagement.File.FileIO
-  * @since 12
+  * @since {'1.1':'12', '1.2':'20'}
+  * @arkts 1.1&1.2
   */
   function createHash(algorithm: string): HashStream;
 }
diff --git a/api/@ohos.file.securityLabel.d.ts b/api/@ohos.file.securityLabel.d.ts
index 6167dc92ace646abc9354557a9cc0b9780f5c409..50e8b574945ea0a99417c83395855c30b5f22205 100644
--- a/api/@ohos.file.securityLabel.d.ts
+++ b/api/@ohos.file.securityLabel.d.ts
@@ -25,7 +25,8 @@ import type { AsyncCallback } from './@ohos.base';
  *
  * @namespace securityLabel
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since {'1.1':'9', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace securityLabel {
   /**
@@ -33,7 +34,8 @@ declare namespace securityLabel {
    *
    * @typedef { 's0' | 's1' | 's2' | 's3' | 's4' }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   type DataLevel = 's0' | 's1' | 's2' | 's3' | 's4';
 
@@ -52,7 +54,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabel(path: string, type: DataLevel): Promise<void>;
 
@@ -71,7 +74,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabel(path: string, type: DataLevel, callback: AsyncCallback<void>): void;
 
@@ -89,7 +93,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabelSync(path: string, type: DataLevel): void;
 
@@ -107,7 +112,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabel(path: string): Promise<string>;
 
@@ -125,7 +131,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabel(path: string, callback: AsyncCallback<string>): void;
 
@@ -143,7 +150,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabelSync(path: string): string;
 }