diff --git a/zh-cn/application-dev/dfx/hiappevent-guidelines.md b/zh-cn/application-dev/dfx/hiappevent-guidelines.md
index 47e2f09b8c55fc72781f18c63bb68d65d7b07f5e..bf190350460c53329cded1e9371402364b46d6d7 100644
--- a/zh-cn/application-dev/dfx/hiappevent-guidelines.md
+++ b/zh-cn/application-dev/dfx/hiappevent-guidelines.md
@@ -1,4 +1,4 @@
-# 应用事件开发指导
+# 应用事件打点开发指导
 
 ## 场景介绍
 
@@ -75,6 +75,6 @@
 
 ## 相关实例
 
-针对应用事件开发，有以下相关实例可供参考：
+针对应用事件打点开发，有以下相关实例可供参考：
 
-- [`JsDotTest`：测试打点（JS）（API7）](https://gitee.com/openharmony/app_samples/tree/master/DFX/JsDotTest)
\ No newline at end of file
+- [`JsDotTest`：测试打点（JS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/DFX/JsDotTest)
\ No newline at end of file
diff --git a/zh-cn/application-dev/media/audio-playback.md b/zh-cn/application-dev/media/audio-playback.md
index 0bb72e8f6dade18281ab4d1a400efa728eafd2d2..ba5cb3045a57ccaa769ae7d0e60f0ab0607d21ad 100644
--- a/zh-cn/application-dev/media/audio-playback.md
+++ b/zh-cn/application-dev/media/audio-playback.md
@@ -257,6 +257,6 @@ export class AudioDemo {
 针对音频播放开发，有以下相关实例可供参考：
 
 - [`JsDistributedMusicPlayer`：分布式音乐播放（JS）（API7）](https://gitee.com/openharmony/app_samples/tree/master/ability/JsDistributedMusicPlayer)
-- [`JsAudioPlayer`：音频播放和管理（JS）（API7）](https://gitee.com/openharmony/app_samples/tree/master/media/JsAudioPlayer)
+- [`JsAudioPlayer`：音频播放和管理（JS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/media/JsAudioPlayer)
 - [`eTsAudioPlayer`: 音频播放器（eTS）](https://gitee.com/openharmony/app_samples/blob/master/media/Recorder/entry/src/main/ets/MainAbility/pages/Play.ets)
 - [音频播放器](https://gitee.com/openharmony/codelabs/tree/master/Media/Audio_OH_ETS)
\ No newline at end of file
diff --git a/zh-cn/application-dev/media/audio-recorder.md b/zh-cn/application-dev/media/audio-recorder.md
index 6ce349669def897a154a0b582662d066f543608e..91cb1835192acfebfcaa207d73e471c3c0895c8b 100644
--- a/zh-cn/application-dev/media/audio-recorder.md
+++ b/zh-cn/application-dev/media/audio-recorder.md
@@ -191,5 +191,6 @@ export class AudioRecorderDemo {
 针对音频录制开发，有以下相关实例可供参考：
 
 - [`Recorder`：录音机（eTS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/media/Recorder)
+- [`JsRecorder`：录音机（JS）（API8)](https://gitee.com/openharmony/app_samples/tree/master/media/JSRecorder)
 - [`eTsAudioPlayer`: 音频播放器（eTS）](https://gitee.com/openharmony/app_samples/blob/master/media/Recorder/entry/src/main/ets/MainAbility/pages/Play.ets)
 - [音频播放器](https://gitee.com/openharmony/codelabs/tree/master/Media/Audio_OH_ETS)
diff --git a/zh-cn/application-dev/media/video-playback.md b/zh-cn/application-dev/media/video-playback.md
index 198b33914a07297f1278285ea5da1b9c5d53b26c..c63d903bc3b40a157ba14eb9b5812d321e109b7f 100644
--- a/zh-cn/application-dev/media/video-playback.md
+++ b/zh-cn/application-dev/media/video-playback.md
@@ -462,3 +462,7 @@ export class VideoPlayerDemo {
   }
 }
 ```
+
+## 相关实例
+针对视频播放开发，有以下相关实例可供参考：
+- [`VideoPlayer`：视频播放（eTS）（API9）](https://gitee.com/openharmony/app_samples/tree/master/media/VideoPlayer)
\ No newline at end of file
diff --git a/zh-cn/application-dev/notification/common-event.md b/zh-cn/application-dev/notification/common-event.md
index 0cc2a6bf02f15ec5d9be35fb890c84e08454881d..800b2d08725393b200cdb81fe4f3f6164eeb748a 100644
--- a/zh-cn/application-dev/notification/common-event.md
+++ b/zh-cn/application-dev/notification/common-event.md
@@ -174,5 +174,5 @@ if (this.subscriber != null) {
 
 针对公共事件开发，有以下相关实例可供参考：
 
-- [`CommonEvent`：订阅公共事件（eTS）（API7）](https://gitee.com/openharmony/app_samples/tree/master/Notification/CommonEvent)
+- [`CommonEvent`：订阅公共事件（eTS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/Notification/CommonEvent)
 
diff --git a/zh-cn/application-dev/notification/notification.md b/zh-cn/application-dev/notification/notification.md
index 603af08a1b20e361d4bd15034b384b32cf45c994..c00afc4538c4c013a5a112e78c718a980fe5b64f 100644
--- a/zh-cn/application-dev/notification/notification.md
+++ b/zh-cn/application-dev/notification/notification.md
@@ -248,5 +248,5 @@ Notification.cancel(1, "label", cancelCallback)
 ## 相关实例
 
 针对通知开发，有以下相关可供参考：
-
-- [`Notification`：通知（eTS）（API7）](https://gitee.com/openharmony/app_samples/tree/master/common/Notification)
+- [`Notification`：订阅、发送通知（eTS）（API9）](https://gitee.com/openharmony/app_samples/tree/master/Notification/Notification)
+- [`Notification`：通知（eTS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/common/Notification)