diff --git a/zh-cn/application-dev/reference/apis/js-apis-appAccount.md b/zh-cn/application-dev/reference/apis/js-apis-appAccount.md
index c9bf5b77ab2dba22d69508a6c65d24cba2e2667e..0b8a2dbf441fcf5e6b9ef3328e3cc423b207f5aa 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-appAccount.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-appAccount.md
@@ -26,7 +26,7 @@ createAppAccountManager(): AppAccountManager
 
 **示例：**
   ```js
-  var appAccountManager = account_appAccount.createAppAccountManager();
+  const appAccountManager = account_appAccount.createAppAccountManager();
   ```
 
 ## AppAccountManager
diff --git a/zh-cn/application-dev/reference/apis/js-apis-media.md b/zh-cn/application-dev/reference/apis/js-apis-media.md
index ed2c9af07bd23d680fc5317bf4ad170c7c66c703..0898dfb5987bcc3cb0628e614ed3d1b5478e0682 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-media.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-media.md
@@ -117,7 +117,7 @@ createAudioRecorder(): AudioRecorder
 **示例：**
 
 ```js
-let audiorecorder = media.createAudioRecorder();
+let audioRecorder = media.createAudioRecorder();
 ```
 
 ## media.createVideoRecorder<sup>9+</sup>