diff --git a/api/@ohos.file.fs.d.ts b/api/@ohos.file.fs.d.ts
index 6652e7c5b50f08c7de6e4fd867b38df9df70d7b6..4893dd95d2d98ed61f7bc3d7d1b1b185e9a1e709 100644
--- a/api/@ohos.file.fs.d.ts
+++ b/api/@ohos.file.fs.d.ts
@@ -22,19 +22,50 @@ export default fileIo;
  * @since 9
  */
 declare namespace fileIo {
+    export { access };
+    export { accessSync };
+    export { close };
+    export { closeSync };
+    export { copyFile };
+    export { copyFileSync };
+    export { createStream };
+    export { createStreamSync };
+    export { fdatasync };
+    export { fdatasyncSync };
+    export { fdopenStream };
+    export { fdopenStreamSync };
+    export { fsync };
+    export { fsyncSync };
+    export { lstat };
+    export { lstatSync };
+    export { mkdir };
+    export { mkdirSync };
+    export { mkdtemp };
+    export { mkdtempSync };
     export { open };
     export { openSync };
     export { read };
     export { readSync };
+    export { readText };
+    export { readTextSync };
+    export { rename };
+    export { renameSync };
+    export { rmdir };
+    export { rmdirSync };
     export { stat };
     export { statSync };
+    export { symlink };
+    export { symlinkSync };
     export { truncate };
     export { truncateSync };
+    export { unlink };
+    export { unlinkSync };
     export { write };
     export { writeSync };
     export { File };
     export { OpenMode };
     export { Stat };
+    export { Stream };
     
     /**
      * Mode Indicates the open flags.
@@ -55,142 +86,828 @@ declare namespace fileIo {
     }
 }
 
+/**
+ * access file.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function access
+ * @param {string} path - path.
+ * @param {AsyncCallback<boolean>} [callback] - callback.
+ * @returns {void | Promise<boolean>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function access(path: string, callback?: AsyncCallback<boolean>): void | Promise<boolean>;
+/**
+ * access file with sync interface.
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function accessSync
+ * @param {string} path - path.
+ * @returns {boolean} access success
+ * @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
+ */
+declare function accessSync(path: string): boolean;
+
+/**
+ * close.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function close
+ * @param {number | File} file - file object or fd.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function close(file: number | File, callback?: AsyncCallback<void>): void | Promise<void>;
+/**
+ * closeSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @permission N/A
+ * @function closeSync
+ * @param {number | File} file - file object or fd.
+ * @returns {void} close success
+ * @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
+ */
+declare function closeSync(fd: number | File): void;
+
+/**
+ * copyFile.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function copyFile
+ * @param {string | number} src - src.
+ * @param {string | number} dest - dest.
+ * @param {number} [mode = 0] - mode.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function copyFile(src: string | number, dest: string | number, mode?: number, callback?: AsyncCallback<void>): void | Promise<void>;
+/**
+ * copyFileSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function copyFileSync
+ * @param {string | number} src - src.
+ * @param {string | number} dest - dest.
+ * @param {number} [mode = 0] - mode.
+ * @returns {void} copyFile success
+ * @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
+ */
+declare function copyFileSync(src: string | number, dest: string | number, mode?: number): void;
+
+/**
+ * createStream.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function createStream
+ * @param {string} path - path.
+ * @param {string} mode - mode.
+ * @param {AsyncCallback<Stream>} [callback] - callback.
+ * @returns {void | Promise<Stream>} no callback return Promise otherwise return Stream
+ * @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
+ */
+declare function createStream(path: string, mode: string, callback?: AsyncCallback<Stream>): void | Promise<Stream>;
+
+/**
+ * createStreamSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function createStreamSync
+ * @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
+ */
+declare function createStreamSync(path: string, mode: string): Stream;
+
+/**
+ * fdatasync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fdatasync
+ * @param {number} fd - fd.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function fdatasync(fd: number, callback?: AsyncCallback<void>): void | Promise<void>;
+/**
+ * fdatasyncSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fdatasyncSync
+ * @param {number} fd - fd.
+ * @returns {void} fdatasync success
+ * @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
+ */
+declare function fdatasyncSync(fd: number): void;
+
+/**
+ * fdopenStream.
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fdopenStream
+ * @param {number} fd - fd.
+ * @param {string} mode - mode.
+ * @param {AsyncCallback<Stream>} [callback] - callback.
+ * @returns {void | Promise<Stream>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function fdopenStream(fd: number, mode: string, callback?: AsyncCallback<Stream>): void | Promise<Stream>;
+/**
+ * fdopenStreamSync.
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fdopenStreamSync
+ * @param {number} fd - fd.
+ * @param {string} mode - mode.
+ * @returns {Stream} open stream from fd
+ * @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
+  */
+declare function fdopenStreamSync(fd: number, mode: string): Stream;
+
+/**
+ * fsync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fsync
+ * @param {number} fd - fd.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function fsync(fd: number, callback?: AsyncCallback<void>): void | Promise<void>;
+
+/**
+ * fsyncSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function fsyncSync
+ * @param {number} fd - fd.
+ * @returns {void} fsync success
+ * @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
+ */
+declare function fsyncSync(fd: number): void;
+
+/**
+ * lstat.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function lstat
+ * @param {string} path - path.
+ * @param {AsyncCallback<Stat>} [callback] - callback.
+ * @returns {void | Promise<Stat>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function lstat(path: string, callback?: AsyncCallback<Stat>): void | Promise<Stat>;
+
+/**
+ * lstatSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function lstatSync
+ * @param {string} path - path.
+ * @returns {Stat} lstat success
+ * @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
+ */
+declare function lstatSync(path: string): Stat;
+ 
+/**
+ * mkdir.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function mkdir
+ * @param {string} path - path.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function mkdir(path: string, callback?: AsyncCallback<void>): void | Promise<void>;
+
+/**
+ * mkdirSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function mkdirSync
+ * @param {string} path - path.
+ * @returns {void} mkdir success
+ * @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
+ */
+declare function mkdirSync(path: string): void;
+
+/**
+ * mkdtemp.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function mkdtemp
+ * @param {string} prefix - dir prefix.
+ * @param {AsyncCallback<string>} [callback] - callback.
+ * @returns {void | Promise<string>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function mkdtemp(prefix: string, callback?: AsyncCallback<string>): void | Promise<string>;
+
+/**
+ * mkdtempSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function mkdtempSync
+ * @param {string} prefix - dir prefix.
+ * @returns {string} directory name
+ * @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
+ */
+declare function mkdtempSync(prefix: string): string;
+
 /**
  * Open file.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 9
- * @function open
- * @param {string} path - path.
- * @param {number} [mode = OpenMode.READ_ONLY] - mode.
- * @param {AsyncCallback<File>} [callback] - callback.
- * @returns {void | Promise<File>} no callback return Promise otherwise return void
+ * @function open
+ * @param {string} path - path.
+ * @param {number} [mode = OpenMode.READ_ONLY] - mode.
+ * @param {AsyncCallback<File>} [callback] - callback.
+ * @returns {void | Promise<File>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function open(path: string, mode?: number, callback?: AsyncCallback<File>): void | Promise<File>;
+
+/**
+ * Open file with sync interface.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function openSync
+ * @param {string} path - path.
+ * @param {number} [mode = OpenMode.READ_ONLY] - mode.
+ * @returns {File} open fd
+ * @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
+ */
+declare function openSync(path: string, mode?: number): File;
+
+/**
+ * Read file.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function read
+ * @param {number} fd - file descriptor.
+ * @param {ArrayBuffer} buffer - file descriptor.
+ * @param {Object} [options] - options.
+ * @param {number} [options.offset = 0] - offset.
+ * @param {number} [options.length = 0] - length.
+ * @param {AsyncCallback<number>} [callback] - callback.
+ * @returns {void | Promise<number>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function read(fd: number, buffer: ArrayBuffer, options?: {
+    offset?: number;
+    length?: number;
+}, callback?: AsyncCallback<number>): void | Promise<number>
+
+/**
+ * Read file with sync interface.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function readSync
+ * @param {number} fd - file descriptor.
+ * @param {ArrayBuffer} buffer - file descriptor.
+ * @param {Object} [options] - options.
+ * @param {number} [options.offset = 0] - offset.
+ * @param {number} [options.length = 0] - length.
+ * @returns {number} number of bytesRead
+ * @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
+ */
+declare function readSync(fd: number, buffer: ArrayBuffer, options?: {
+    offset?: number;
+    length?: number;
+}): number;
+
+/**
+ * readText.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function readText
+ * @param {string} filePath - file path.
+ * @param {Object} [options] - options.
+ * @param {number} [options.offset = 0] - offset in bytes.
+ * @param {number} [options.length = 0] - length in bytes.
+ * @param {number} [options.encoding = 'utf-8'] - encoding.
+ * @param {AsyncCallback<string>} [callback] - callback.
+ * @returns {void | Promise<string>} no callback return Promise otherwise return void
+ * @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
+ */
+
+declare function readText(filePath: string, options?: {
+    offset?: number;
+    length?: number;
+    encoding?: string;
+}, callback?: AsyncCallback<string>): void | Promise<string>;
+
+/**
+ * readTextSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function readTextSync
+ * @param {string} filePath - file path.
+ * @param {Object} [options] - options.
+ * @param {number} [options.offset = 0] - offset in bytes.
+ * @param {number} [options.length = 0] - length in bytes.
+ * @param {number} [options.encoding = 'utf-8'] - encoding.
+ * @returns {string} readout result
  * @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 } 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
+ */
+declare function readTextSync(filePath: string, options?: {
+    offset?: number;
+    length?: number;
+    encoding?: string;
+}): string;
+
+/**
+ * rename.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function rename
+ * @param {string} oldPath - oldPath.
+ * @param {string} newPath - newPath.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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 } 13900017  - No such device
+ * @throws { BusinessError } 13900015  - Cross-device link
  * @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 } 13900028  - Too many links
+ * @throws { BusinessError } 13900032  - Directory not empty
  * @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
  */
-declare function open(path: string, mode?: number): Promise<File>;
-declare function open(path: string, callback: AsyncCallback<File>): void;
-declare function open(path: string, mode: number, callback: AsyncCallback<File>): void;
+declare function rename(oldPath: string, newPath: string, callback?: AsyncCallback<void>): void | Promise<void>;
+
 /**
- * Open file with sync interface.
+ * renameSync.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 9
- * @function openSync
- * @param {string} path - path.
- * @param {number} [mode = OpenMode.READ_ONLY] - mode.
- * @returns {File} open fd
+ * @function renameSync
+ * @param {string} oldPath - oldPath.
+ * @param {string} newPath - newPath.
+ * @returns {void} rename success
  * @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 } 13900015  - Cross-device link
  * @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 } 13900028  - Too many links
+ * @throws { BusinessError } 13900032  - Directory not empty
  * @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
- */
-declare function openSync(path: string, mode?: number): File;
+  */
+declare function renameSync(oldPath: string, newPath: string): void;
 
 /**
- * Read file.
+ * rmdir.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 9
- * @function read
- * @param {number} fd - file descriptor.
- * @param {ArrayBuffer} buffer - file descriptor.
- * @param {Object} [options] - options.
- * @param {number} [options.offset = 0] - offset.
- * @param {number} [options.length = 0] - length.
- * @param {AsyncCallback<number>} [callback] - callback.
- * @returns {void | Promise<number>} no callback return Promise otherwise return void
- * @throws { BusinessError } 13900004  - Interrupted system call
- * @throws { BusinessError } 13900005  - I/O error
- * @throws { BusinessError } 13900008  - Bad file descriptor
- * @throws { BusinessError } 13900010  - Try again
+ * @function rmdir
+ * @param {string} path - path.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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 } 13900019  - Is a directory
+ * @throws { BusinessError } 13900014  - Device or resource busy
+ * @throws { BusinessError } 13900018  - Not a directory
  * @throws { BusinessError } 13900020  - Invalid argument
- * @throws { BusinessError } 13900034  - Operation would block
+ * @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
  */
-declare function read(fd: number, buffer: ArrayBuffer, options?: {
-    offset?: number;
-    length?: number;
-}): Promise<number>
-declare function read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
-declare function read(fd: number, buffer: ArrayBuffer, options: {
-    offset?: number;
-    length?: number;
-}, callback: AsyncCallback<number>): void;
+declare function rmdir(path: string, callback?: AsyncCallback<void>): void | Promise<void>;
+
 /**
- * Read file with sync interface.
+ * rmdirSync.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 9
- * @function readSync
- * @param {number} fd - file descriptor.
- * @param {ArrayBuffer} buffer - file descriptor.
- * @param {Object} [options] - options.
- * @param {number} [options.offset = 0] - offset.
- * @param {number} [options.length = 0] - length.
- * @returns {number} number of bytesRead
- * @throws { BusinessError } 13900004  - Interrupted system call
- * @throws { BusinessError } 13900005  - I/O error
- * @throws { BusinessError } 13900008  - Bad file descriptor
- * @throws { BusinessError } 13900010  - Try again
+ * @function rmdirSync
+ * @param {string} path - path.
+ * @returns {void} rmdir success
+ * @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 } 13900019  - Is a directory
+ * @throws { BusinessError } 13900014  - Device or resource busy
+ * @throws { BusinessError } 13900018  - Not a directory
  * @throws { BusinessError } 13900020  - Invalid argument
- * @throws { BusinessError } 13900034  - Operation would block
+ * @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
- */
-declare function readSync(fd: number, buffer: ArrayBuffer, options?: {
-    offset?: number;
-    length?: number;
-}): number;
+  */
+declare function rmdirSync(path: string): void;
 
 /**
  * Get file information.
@@ -214,8 +931,8 @@ declare function readSync(fd: number, buffer: ArrayBuffer, options?: {
  * @throws { BusinessError } 13900038  - Value too large for defined data type
  * @throws { BusinessError } 13900042  - Unknown error
  */
-declare function stat(file: string | number): Promise<Stat>;
-declare function stat(file: string | number, callback: AsyncCallback<Stat>): void;
+declare function stat(file: string | number, callback?: AsyncCallback<Stat>): void | Promise<Stat>;
+
 /**
  * Get file information with sync interface.
  * @static
@@ -239,7 +956,60 @@ declare function stat(file: string | number, callback: AsyncCallback<Stat>): voi
  */
 declare function statSync(file: string | number): Stat;
 
- /**
+/**
+ * symlink.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function symlink
+ * @param {string} target - target.
+ * @param {string} srcPath - srcPath.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function symlink(target: string, srcPath: string): Promise<void>;
+declare function symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;
+/**
+ * symlinkSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function symlinkSync
+ * @param {string} target - target.
+ * @param {string} srcPath - srcPath.
+ * @returns {void} symlink success
+ * @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
+  */
+declare function symlinkSync(target: string, srcPath: string): void;
+
+/**
  * Truncate file.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
@@ -266,9 +1036,8 @@ declare function statSync(file: string | number): Stat;
  * @throws { BusinessError } 13900033  - Too many symbolic links encountered
  * @throws { BusinessError } 13900042  - Unknown error
  */
-declare function truncate(file: string | number, len?: number): Promise<void>;
-declare function truncate(file: string | number, callback: AsyncCallback<void>): void;
-declare function truncate(file: string | number, len: number, callback: AsyncCallback<void>): void;
+declare function truncate(file: string | number, len?: number, callback?: AsyncCallback<void>): void | Promise<void>;
+
 /**
  * Truncate file with sync interface.
  *
@@ -297,6 +1066,59 @@ declare function truncate(file: string | number, len: number, callback: AsyncCal
  */
 declare function truncateSync(file: string | number, len?: number): void;
 
+/**
+ * unlink.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function unlink
+ * @param {string} path - path.
+ * @param {AsyncCallback<void>} [callback] - callback.
+ * @returns {void | Promise<void>} no callback return Promise otherwise return void
+ * @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
+ */
+declare function unlink(path: string, callback?: AsyncCallback<void>): void | Promise<void>;
+
+/**
+ * unlinkSync.
+ *
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function unlinkSync
+ * @param {string} path - path.
+ * @returns {void} unlink success
+ * @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
+ */
+declare function unlinkSync(path: string): void;
+
 /**
  * Write file.
  *
@@ -328,13 +1150,8 @@ declare function write(fd: number, buffer: ArrayBuffer | string, options?: {
     offset?: number;
     length?: number;
     encoding?: string;
-}): Promise<number>;
-declare function write(fd: number, buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
-declare function write(fd: number, buffer: ArrayBuffer | string, options: {
-    offset?: number;
-    length?: number;
-    encoding?: string;
-}, callback: AsyncCallback<number>): void;
+}, callback?: AsyncCallback<number>): void | Promise<number>;
+
 /**
  * Write file with sync interface.
  *
@@ -392,6 +1209,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly ino: number;
     /**
@@ -399,6 +1218,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly mode: number;
     /**
@@ -406,6 +1227,10 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly uid: number;
     /**
@@ -413,6 +1238,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly gid: number;
     /**
@@ -420,6 +1247,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly size: number;
     /**
@@ -427,6 +1256,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly atime: number;
     /**
@@ -434,6 +1265,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly mtime: number;
     /**
@@ -441,6 +1274,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @readonly
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     readonly ctime: number;
     /**
@@ -448,6 +1283,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isBlockDevice(): boolean;
     /**
@@ -455,6 +1292,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isCharacterDevice(): boolean;
     /**
@@ -462,6 +1301,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isDirectory(): boolean;
     /**
@@ -469,6 +1310,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isFIFO(): boolean;
     /**
@@ -476,6 +1319,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isFile(): boolean;
     /**
@@ -483,6 +1328,8 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isSocket(): boolean;
     /**
@@ -490,6 +1337,195 @@ declare interface Stat {
      * @syscap SystemCapability.FileManagement.File.FileIO
      * @since 9
      * @returns {boolean} is or not
+     * @throws { BusinessError } 13900005  - I/O error
+     * @throws { BusinessError } 13900042  - Unknown error
      */
     isSymbolicLink(): boolean;
 }
+
+/**
+ * Stream
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ */
+declare interface Stream {
+    /**
+     * close.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {AsyncCallback<void>} [callback] - callback.
+     * @returns {void | Promise<void>} close success
+     * @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
+     * 
+     */
+    close(callback?: AsyncCallback<void>): void | Promise<void>;
+    /**
+     * closeSync.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @returns {void} close success
+     * @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
+     */
+    closeSync(): void;
+    /**
+     * flush.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {AsyncCallback<void>} [callback] - callback.
+     * @returns {void | Promise<void>} no callback return Promise otherwise return void
+     * @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
+     */
+    flush(callback?: AsyncCallback<void>): void | Promise<void>;
+    /**
+     * flushSync.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @returns {void} flush success
+     * @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
+     */
+    flushSync(): void;
+    /**
+     * write.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {ArrayBuffer | string} buffer - file description.
+     * @param {Object} [options] - options.
+     * @param {number} [options.length = 0] - length(bytes) ignored when buffer is string.
+     * @param {number} [options.offset = 0] - offset(bytes) where start to write < 0 use read, else use pread.
+     * @param {string} [options.encoding = 'utf-8'] -  encoding.
+     * @param {AsyncCallback<number>} [callback] - callback.
+     * @returns {void | Promise<number>} no callback return Promise otherwise return void
+     * @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
+     */
+    write(buffer: ArrayBuffer | string, options?: {
+        offset?: number;
+        length?: number;
+        encoding?: string;
+    }, callback?: AsyncCallback<number>): void | Promise<number>;
+    /**
+     * writeSync.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {ArrayBuffer | string} buffer - file description.
+     * @param {Object} [options] - options.
+     * @param {number} [options.length = 0] - length(bytes) ignored when buffer is string.
+     * @param {number} [options.offset = 0] - offset(bytes) where start to write < 0 use read, else use pread.
+     * @param {string} [options.encoding = 'utf-8'] -  encoding.
+     * @returns {number} on success number of bytes written
+     * @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
+     */
+    writeSync(buffer: ArrayBuffer | string, options?: {
+        offset?: number;
+        length?: number;
+        encoding?: string;
+    }): number;
+    /**
+     * read.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {ArrayBuffer} buffer - file description.
+     * @param {Object} [options] - options.
+     * @param {number} [options.offset = 0] - offset.
+     * @param {number} [options.length = 0] - length.
+     * @param {AsyncCallback<number>} [callback] - callback.
+     * @returns {void | Promise<number>} no callback return Promise otherwise return void
+     * @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(buffer: ArrayBuffer, options?: {
+        offset?: number;
+        length?: number;
+    }, callback?: AsyncCallback<number>): void | Promise<number>;
+    /**
+     * readSync.
+     *
+     * @syscap SystemCapability.FileManagement.File.FileIO
+     * @since 9
+     * @param {ArrayBuffer} buffer - file description.
+     * @param {Object} [options] - options.
+     * @param {number} [options.offset = 0] - offset.
+     * @param {number} [options.length = 0] - length.
+     * @returns {number} number of bytesRead
+     * @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
+     */
+    readSync(buffer: ArrayBuffer, options?: {
+        offset?: number;
+        length?: number;
+    }): number;
+}
diff --git a/api/@ohos.file.hash.d.ts b/api/@ohos.file.hash.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..fc44d598deba31e568f9aa406a422cfc7331679f
--- /dev/null
+++ b/api/@ohos.file.hash.d.ts
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { AsyncCallback } from './basic'
+
+export default Hash;
+
+/**
+ * Hash
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ */
+declare namespace Hash {
+    export { hash };
+}
+
+ /**
+ * hash.
+ * @static
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 9
+ * @function hash
+ * @param {string} path - path.
+ * @param {string} algorithm - algorithm md5 sha1 sha256.
+ * @param {AsyncCallback<string>} [callback] - callback.
+ * @returns {void | Promise<string>} no callback return Promise otherwise return void
+ * @throws {BusinessError} Parameter check failed
+ */
+  declare function hash(path: string, algorithm: string): Promise<string>;
+  declare function hash(path: string, algorithm: string, callback: AsyncCallback<string>): void;
\ No newline at end of file
diff --git a/api/@ohos.fileio.d.ts b/api/@ohos.fileio.d.ts
index beaf544455ddbcfd0091975b20e618331752932e..be7a93c235fb80196ecc71f15d102ddc02a89d98 100644
--- a/api/@ohos.fileio.d.ts
+++ b/api/@ohos.fileio.d.ts
@@ -94,6 +94,8 @@ declare namespace fileIO {
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.access
  * @permission N/A
  * @function access
  * @param {string} path - path.
@@ -110,6 +112,8 @@ declare function access(path: string, mode: number, callback: AsyncCallback<void
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.accessSync
  * @permission N/A
  * @function accessSync
  * @param {string} path - path.
@@ -123,6 +127,8 @@ declare function accessSync(path: string, mode?: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.close
  * @permission N/A
  * @function close
  * @param {number} fd - fd.
@@ -137,6 +143,8 @@ declare function close(fd: number, callback: AsyncCallback<void>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.closeSync
  * @permission N/A
  * @function closeSync
  * @param {number} fd - fd.
@@ -149,6 +157,8 @@ declare function closeSync(fd: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.copyFile
  * @permission N/A
  * @function copyFile
  * @param {string | number} src - src.
@@ -166,6 +176,8 @@ declare function copyFile(src: string | number, dest: string | number, mode: num
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.copyFileSync
  * @permission N/A
  * @function copyFileSync
  * @param {string | number} src - src.
@@ -180,6 +192,8 @@ declare function copyFileSync(src: string | number, dest: string | number, mode?
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.createStream
  * @permission N/A
  * @function createStream
  * @param {string} path - path.
@@ -195,6 +209,8 @@ declare function createStream(path: string, mode: string, callback: AsyncCallbac
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.createStreamSync
  * @permission N/A
  * @function createStreamSync
  * @param {string} path - path.
@@ -208,6 +224,7 @@ declare function createStreamSync(path: string, mode: string): Stream;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function appendFile
  * @param {string} path - path.
@@ -224,6 +241,7 @@ declare function chown(path: string, uid: number, gid: number, callback: AsyncCa
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function appendFile
  * @param {string} path - path.
@@ -238,6 +256,7 @@ declare function chownSync(path: string, uid: number, gid: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function chmod
  * @param {string} path - path.
@@ -253,6 +272,7 @@ declare function chmod(path: string, mode: number, callback: AsyncCallback<void>
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function chmodSync
  * @param {string} path - path.
@@ -297,6 +317,8 @@ declare function ftruncateSync(fd: number, len?: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fsync
  * @permission N/A
  * @function fsync
  * @param {number} fd - fd.
@@ -311,6 +333,8 @@ declare function fsync(fd: number, callback: AsyncCallback<void>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fsyncSync
  * @permission N/A
  * @function fsyncSync
  * @param {number} fd - fd.
@@ -350,6 +374,8 @@ declare function fstatSync(fd: number): Stat;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fdatasync
  * @permission N/A
  * @function fdatasync
  * @param {number} fd - fd.
@@ -364,6 +390,8 @@ declare function fdatasync(fd: number, callback: AsyncCallback<void>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fdatasyncSync
  * @permission N/A
  * @function fdatasyncSync
  * @param {number} fd - fd.
@@ -376,6 +404,7 @@ declare function fdatasyncSync(fd: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function fchown
  * @param {number} fd - fd.
@@ -392,6 +421,7 @@ declare function fchown(fd: number, uid: number, gid: number, callback: AsyncCal
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function fchownSync
  * @param {number} fd - fd.
@@ -406,6 +436,7 @@ declare function fchownSync(fd: number, uid: number, gid: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function fchmod
  * @param {number} fd - fd.
@@ -421,6 +452,7 @@ declare function fchmod(fd: number, mode: number, callback: AsyncCallback<void>)
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function fchmodSync
  * @param {number} fd - fd.
@@ -433,6 +465,8 @@ declare function fchmodSync(fd: number, mode: number): void;
  * fdopenStream.
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fdopenStream
  * @permission N/A
  * @function fdopenStream
  * @param {number} fd - fd.
@@ -447,6 +481,8 @@ declare function fdopenStream(fd: number, mode: string, callback: AsyncCallback<
  * fdopenStreamSync.
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.fdopenStreamSync
  * @permission N/A
  * @function fdopenStreamSync
  * @param {number} fd - fd.
@@ -460,6 +496,8 @@ declare function fdopenStreamSync(fd: number, mode: string): Stream;
  * @static
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.hash.hash
  * @permission N/A
  * @function hash
  * @param {string} path - path.
@@ -475,6 +513,7 @@ declare function hash(path: string, algorithm: string, callback: AsyncCallback<s
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function lchown
  * @param {string} path - path.
@@ -491,6 +530,7 @@ declare function lchown(path: string, uid: number, gid: number, callback: AsyncC
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
  * @permission N/A
  * @function lchownSync
  * @param {string} path - path.
@@ -505,6 +545,8 @@ declare function lchownSync(path: string, uid: number, gid: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.lstat
  * @permission N/A
  * @function lstat
  * @param {string} path - path.
@@ -519,6 +561,8 @@ declare function lstat(path: string, callback: AsyncCallback<Stat>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.lstatSync
  * @permission N/A
  * @function lstatSync
  * @param {string} path - path.
@@ -531,6 +575,8 @@ declare function lstatSync(path: string): Stat;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.mkdir
  * @permission N/A
  * @function mkdir
  * @param {string} path - path.
@@ -547,6 +593,8 @@ declare function mkdir(path: string, mode: number, callback: AsyncCallback<void>
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.mkdirSync
  * @permission N/A
  * @function mkdirSync
  * @param {string} path - path.
@@ -560,6 +608,8 @@ declare function mkdirSync(path: string, mode?: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.mkdtemp
  * @permission N/A
  * @function mkdtemp
  * @param {string} prefix - dir prefix.
@@ -574,6 +624,8 @@ declare function mkdtemp(prefix: string, callback: AsyncCallback<string>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.mkdtempSync
  * @permission N/A
  * @function mkdtempSync
  * @param {string} prefix - dir prefix.
@@ -642,6 +694,8 @@ declare function opendirSync(path: string): Dir;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.readText
  * @permission N/A
  * @function readText
  * @param {string} filePath - file path.
@@ -669,6 +723,8 @@ declare function readText(filePath: string, options: {
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.readTextSync
  * @permission N/A
  * @function readTextSync
  * @param {string} filePath - file path.
@@ -741,6 +797,8 @@ declare function readSync(fd: number, buffer: ArrayBuffer, options?: {
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.rename
  * @permission N/A
  * @function rename
  * @param {string} oldPath - oldPath.
@@ -756,6 +814,8 @@ declare function rename(oldPath: string, newPath: string, callback: AsyncCallbac
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.renameSync
  * @permission N/A
  * @function renameSync
  * @param {string} oldPath - oldPath.
@@ -769,6 +829,8 @@ declare function renameSync(oldPath: string, newPath: string): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.rmdir
  * @permission N/A
  * @function rmdir
  * @param {string} path - path.
@@ -783,6 +845,8 @@ declare function rmdir(path: string, callback: AsyncCallback<void>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.rmdirSync
  * @permission N/A
  * @function rmdirSync
  * @param {string} path - path.
@@ -821,6 +885,8 @@ declare function statSync(path: string): Stat;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.symlink
  * @permission N/A
  * @function symlink
  * @param {string} target - target.
@@ -836,6 +902,8 @@ declare function symlink(target: string, srcPath: string, callback: AsyncCallbac
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 7
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.symlinkSync
  * @permission N/A
  * @function symlinkSync
  * @param {string} target - target.
@@ -880,6 +948,8 @@ declare function truncateSync(path: string, len?: number): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.unlink
  * @permission N/A
  * @function unlink
  * @param {string} path - path.
@@ -894,6 +964,8 @@ declare function unlink(path: string, callback: AsyncCallback<void>): void;
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.unlinkSync
  * @permission N/A
  * @function unlinkSync
  * @param {string} path - path.
@@ -1316,6 +1388,8 @@ declare interface Stat {
  * Stream
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 6
+ * @deprecated since 9
+ * @useinstead ohos.file.fs.Stream
  * @permission N/A
  */
 declare interface Stream {