diff --git a/ApiUsingStandards/entry/src/main/ets/pages/AVImageGenerator.ets b/ApiUsingStandards/entry/src/main/ets/pages/AVImageGenerator.ets
index 968c0fce2c6f4015a8acf4b74074c5aa43347b11..ce2700bea80461f986af0948f73d1a949b81e4db 100644
--- a/ApiUsingStandards/entry/src/main/ets/pages/AVImageGenerator.ets
+++ b/ApiUsingStandards/entry/src/main/ets/pages/AVImageGenerator.ets
@@ -17,6 +17,7 @@ import { media } from '@kit.MediaKit'
 import { image } from '@kit.ImageKit'
 import { fileIo as fs, ReadOptions } from '@kit.CoreFileKit';
 import { display } from '@kit.ArkUI';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 class AVImageGeneratorClass {
   pixelMap: image.PixelMap[] = [];
@@ -39,25 +40,24 @@ class AVImageGeneratorClass {
       // raw fd
       avImageGenerator.fdSrc = fs.openSync(this.rootPath + this.testFilename);
       for (let i = 0; i < 6; i++) {
-        console.info(`time real ${this.diffTime[i]}`);
-        let pixelMap = await avImageGenerator.fetchFrameByTime(this.diffTime[i], this.seekOption,
+        let pixelMap: image.PixelMap = await avImageGenerator.fetchFrameByTime(this.diffTime[i], this.seekOption,
           { width: this.pixelMapWidth, height: this.pixelMapHeight });
         this.pixelMap.push(pixelMap);
         if (i == 0) {
           this.pixelLcd = pixelMap;
-          let rate = pixelMap.getImageInfoSync().size.height / pixelMap.getImageInfoSync().size.width;
+          let rate: number = pixelMap.getImageInfoSync().size.height / pixelMap.getImageInfoSync().size.width;
           this.lcdHeight =
             display.getDefaultDisplaySync().width / 2 / display.getDefaultDisplaySync().densityPixels * rate;
         }
         let imageInfo: image.ImageInfo = pixelMap.getImageInfoSync();
-        console.info(`colorFormat ${imageInfo.pixelFormat} width ${imageInfo.size.width} height ${imageInfo.size.height} isHdr ${imageInfo.isHdr}`);
+        hilog.info(0x0000, 'testTag',
+          `colorFormat ${imageInfo.pixelFormat} width ${imageInfo.size.width} height ${imageInfo.size.height} isHdr ${imageInfo.isHdr}`);
       }
     }
   }
 
   async fetchMeta(): Promise<void> {
     if (canIUse("SystemCapability.Multimedia.Media.AVMetadataExtractor")) {
-      console.info(`typeof ${typeof media.createAVMetadataExtractor()}`);
       let avMetadataExtractor: media.AVMetadataExtractor = await media.createAVMetadataExtractor();
       let fd: number = fs.openSync(this.rootPath + this.testFilename).fd;
       let fileSize: number = fs.statSync(this.rootPath + this.testFilename).size;
@@ -65,15 +65,13 @@ class AVImageGeneratorClass {
         fileSize: fileSize,
         callback: (buffer, len, pos) => {
           if (buffer == undefined || len == undefined || pos == undefined) {
-            console.error(`dataSrc callback param invalid`);
             return -1;
           }
           let options: ReadOptions = {
             offset: pos,
             length: len
           }
-          let num = fs.readSync(fd, buffer, options);
-          console.info('readAt end, num: ' + num);
+          let num: number = fs.readSync(fd, buffer, options);
           if (num > 0 && fileSize >= pos) {
             return num;
           }
@@ -86,24 +84,22 @@ class AVImageGeneratorClass {
       try {
         metadata = await avMetadataExtractor.fetchMetadata();
       } catch (error) {
-        console.info('error code ' + error.code);
+        hilog.error(0x0000, 'testTag', 'error code ' + error.code);
         return;
       }
-      console.info(`metadata ${JSON.stringify(metadata)}`);
       if (metadata.duration) {
-        console.info(`fetchMetadata success duration ${metadata.duration}`);
-        let duration = parseInt(metadata.duration) * 1000;
-        let pick = duration / 5;
+        let duration: number = parseInt(metadata.duration) * 1000;
+        let pick: number = duration / 5;
         this.diffTime[0] = 0;
         this.diffTime[5] = duration;
-        let time = pick;
+        let time: number = pick;
         for (let i = 1; i < 5; i++) {
           this.diffTime[i] = time;
           time += pick;
         }
       }
       if (metadata.videoHeight && metadata.videoWidth) {
-        let rate = Number(metadata.videoHeight) / Number(metadata.videoWidth);
+        let rate: number = Number(metadata.videoHeight) / Number(metadata.videoWidth);
         if (metadata.videoOrientation && Number(metadata.videoOrientation) % 180) {
           rate = 1 / rate;
         }
@@ -113,5 +109,6 @@ class AVImageGeneratorClass {
       await avMetadataExtractor.release();
     }
   }
+
   // [End av_image_generator_class]
 }
\ No newline at end of file
diff --git a/ApiUsingStandards/entry/src/main/ets/pages/camera.ets b/ApiUsingStandards/entry/src/main/ets/pages/camera.ets
index ed8e35a7c7e778a5d7323aaf7956003b30377b96..0e31101aef0778563fc1916350e2df96b7d7e3e5 100644
--- a/ApiUsingStandards/entry/src/main/ets/pages/camera.ets
+++ b/ApiUsingStandards/entry/src/main/ets/pages/camera.ets
@@ -42,7 +42,7 @@ class cameraClass {
     let previewOutput: camera.CameraOutput | undefined = undefined;
     let cameraInput: camera.CameraInput | undefined = undefined;
     let profile: camera.Profile = cameraOutputCapability.previewProfiles[0];
-    let surfaceId = 'xxx';
+    let surfaceId: string = 'xxx';
     // [Start add_output]
     previewOutput = cameraManager.createPreviewOutput(profile, surfaceId);
     cameraInput = cameraManager.createCameraInput(camera);
@@ -58,7 +58,7 @@ class cameraClass {
     let previewOutput: camera.CameraOutput | undefined = undefined;
     let cameraInput: camera.CameraInput | undefined = undefined;
     let profile: camera.Profile = cameraOutputCapability.previewProfiles[0];
-    let surfaceId = 'xxx';
+    let surfaceId: string = 'xxx';
     // [Start add_output1]
     previewOutput = cameraManager.createPreviewOutput(profile, surfaceId);
     cameraInput = cameraManager.createCameraInput(camera);
@@ -79,4 +79,5 @@ async function onBackground(): Promise<void> {
   await cameraInput.close();
   await cameraSession.release();
 }
+
 // [End close_release]
\ No newline at end of file
diff --git a/ApiUsingStandards/entry/src/main/ets/pages/playStateCallback.ets b/ApiUsingStandards/entry/src/main/ets/pages/playStateCallback.ets
index 4de3c1bf34c9b2c2e1340b2cdc27723c27feb2b5..d9621a1659c6227cb8621016b74da65ca02fd1a3 100644
--- a/ApiUsingStandards/entry/src/main/ets/pages/playStateCallback.ets
+++ b/ApiUsingStandards/entry/src/main/ets/pages/playStateCallback.ets
@@ -18,8 +18,7 @@
  */
 import { BusinessError } from '@kit.BasicServicesKit';
 import { avSession } from '@kit.AVSessionKit';
-
-const TAG: string = 'TEST';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 class avSessionClass {
   castController!: avSession.AVCastController;
@@ -32,17 +31,16 @@ class avSessionClass {
   create(context: Context, tag: string): void {
     avSession.createAVSession(context, tag, "audio").then(async (currentAVSession: avSession.AVSession) => {
       this.session = currentAVSession;
-      let sessionController = await currentAVSession.getAVCastController();
+      let sessionController: avSession.AVCastController = await currentAVSession.getAVCastController();
       this.castController = sessionController;
       // [Start play_state_callback]
-      let playStateCallback = (state: avSession.AVPlaybackState) => {
-
+      let playStateCallback: (state: avSession.AVPlaybackState) => void = (state: avSession.AVPlaybackState) => {
       }
       sessionController.on('playbackStateChange', 'all', this.playStateCallback);
       sessionController.off('playbackStateChange', this.playStateCallback);
       // [End play_state_callback]
     }).catch((err: BusinessError) => {
-      console.info(`CreateAVSession BusinessError: code: ${err.code}, message: ${err.message}`);
+      hilog.error(0x0000, 'testTag', `CreateAVSession BusinessError: code: ${err.code}, message: ${err.message}`);
     });
   }
 
@@ -66,10 +64,9 @@ class avSessionClass {
     // [Start prepare]
     // Preparing to play, this will not trigger actual playback, it will load and buffer
     this.castController?.prepare(playItem, () => {
-      console.info('Preparation done');
       // Start playback, truly triggering the playback on the other end. Please call start after Prepare is successful.
       this.castController?.start(playItem, () => {
-        console.info('Playback started');
+        hilog.info(0x0000, 'testTag', 'Playback started');
       });
     });
     // [End prepare]
@@ -78,7 +75,6 @@ class avSessionClass {
   onPrepare(): void {
     // [Start on_prepare]
     this.session?.on('pause', async () => {
-      console.info(TAG, `on pause , do pause task`);
       // Execute player pause
       // Set the status and progress during pause
       this.currentState = {
diff --git a/JSCrash/README.md b/JSCrash/README.md
index e50d680e98a443bfd73a8de5bacf66b5db486023..c20f7ed83a625ecb9319994cc960cacf18a12103 100644
--- a/JSCrash/README.md
+++ b/JSCrash/README.md
@@ -11,11 +11,11 @@
 
 ### 工程目录
 ```
-├──entry/src/main/ets                                   // 代码区
+├──entry/src/main/ets                                   
 │  ├──entryability
 │  │  └──EntryAbility.ets                               // 程序入口类
 │  ├──entrybackupability
-│  │  └──EntryBackupAbility.ets
+│  │  └──EntryBackupAbility.ets                         // 数据恢复类
 │  └──pages             
 │     ├──Index.ets                                      // 首页     
 │     ├── JSCrashCaseAnalyse1.ets                       // ArkTS样例代码
@@ -23,7 +23,6 @@
 │     ├── JSCrashCaseAnalyse3.ets                       // ArkTS样例代码 
 │     ├── JSCrashCaseAnalyse4.ets                       // ArkTS样例代码 
 │     ├── JSCrashCaseAnalyse5.ets                       // ArkTS样例代码 
-│     ├── JSCrashCaseAnalyse6.ets                       // ArkTS样例代码 
 │     ├── JSCrashQuestionCheck.ets                      // ArkTS样例代码 
 │     └── utils.ets                                     // 工具类                              
 └──entry/src/main/resources                             // 应用资源目录