modify doc file Signed-off-by: FULIZHONG<fulizhong1@huawei.com>

Signed-off-by: Nflz <fulizhong1@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-media.md

@@ -45,14 +45,14 @@ createAVPlayer(callback: AsyncCallback\<AVPlayer>): void
 **示例：**
 
 ```js
-let avPlayer
+let avPlayer;
 
 media.createAVPlayer((error, video) => {
   if (video != null) {
     avPlayer = video;
     console.info('createAVPlayer success');
   } else {
-       console.info(`createAVPlayer fail, error:${error}`);
+    console.error(`createAVPlayer fail, error message:${error.message}`);
   }
 });
 ```
@@ -82,17 +82,17 @@ createAVPlayer(): Promise\<AVPlayer>
 **示例：**
 
 ```js
-let avPlayer
+let avPlayer;
 
 media.createAVPlayer().then((video) => {
   if (video != null) {
     avPlayer = video;
     console.info('createAVPlayer success');
   } else {
-       console.info('createAVPlayer fail');
+    console.error('createAVPlayer fail');
   }
 }).catch((error) => {
-   console.info(`AVPlayer catchCallback, error:${error}`);
+  console.error(`AVPlayer catchCallback, error message:${error.message}`);
 });
 ```
 
@@ -122,14 +122,14 @@ createAVRecorder(callback: AsyncCallback\<AVRecorder>): void
 **示例：**
 
 ```js
-let avRecorder
+let avRecorder;
 
 media.createAVRecorder((error, recorder) => {
   if (recorder != null) {
     avRecorder = recorder;
     console.info('createAVRecorder success');
   } else {
-       console.info(`createAVRecorder fail, error:${error}`);
+    console.error(`createAVRecorder fail, error message:${error.message}`);
   }
 });
 ```
@@ -160,17 +160,17 @@ createAVRecorder(): Promise\<AVRecorder>
 **示例：**
 
 ```js
-let avRecorder
+let avRecorder;
 
 media.createAVRecorder().then((recorder) => {
   if (recorder != null) {
     avRecorder = recorder;
     console.info('createAVRecorder success');
   } else {
-       console.info('createAVRecorder fail');
+    console.error('createAVRecorder fail');
   }
 }).catch((error) => {
-   console.info(`createAVRecorder catchCallback, error:${error}`);
+  console.error(`createAVRecorder catchCallback, error message:${error.message}`);
 });
 ```
 
@@ -202,14 +202,14 @@ createVideoRecorder(callback: AsyncCallback\<VideoRecorder>): void
 **示例：**
 
 ```js
-let videoRecorder
+let videoRecorder;
 
 media.createVideoRecorder((error, video) => {
   if (video != null) {
     videoRecorder = video;
     console.info('video createVideoRecorder success');
   } else {
-       console.info(`video createVideoRecorder fail, error:${error}`);
+    console.error(`video createVideoRecorder fail, error message:${error.message}`);
   }
 });
 ```
@@ -242,17 +242,17 @@ createVideoRecorder(): Promise\<VideoRecorder>
 **示例：**
 
 ```js
-let videoRecorder
+let videoRecorder;
 
 media.createVideoRecorder().then((video) => {
   if (video != null) {
     videoRecorder = video;
     console.info('video createVideoRecorder success');
   } else {
-       console.info('video createVideoRecorder fail');
+    console.error('video createVideoRecorder fail');
   }
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error message:${error.message}`);
 });
 ```
 
@@ -483,8 +483,8 @@ AVPlayer回调的**错误分类**<a name = error_info></a>可以分为以下几
 
 ```js
 avPlayer.on('error', (error) => {
-    console.info('error happened,and error message is :' + error.message)
-    console.info('error happened,and error code is :' + error.code)
+  console.error('error happened,and error message is :' + error.message)
+  console.error('error happened,and error code is :' + error.code)
 })
 ```
 
@@ -931,7 +931,7 @@ getTrackDescription(callback: AsyncCallback\<Array\<MediaDescription>>): void
 **示例：**
 
 ```js
-printfDescription(obj) {
+function printfDescription(obj) {
   for (let item in obj) {
     let property = obj[item];
     console.info('audio key is ' + item);
@@ -977,7 +977,7 @@ getTrackDescription(): Promise\<Array\<MediaDescription>>
 ```js
 let arrayDescription;
 
-printfDescription(obj) {
+function printfDescription(obj) {
   for (let item in obj) {
     let property = obj[item];
     console.info('audio key is ' + item);
@@ -1788,7 +1788,7 @@ avRecorder.prepare(AVRecorderConfig, (err) => {
   if (err == null) {
     console.info('prepare success');
   } else {
-        console.info('prepare failed and error is ' + err.message);
+    console.error('prepare failed and error is ' + err.message);
   }
 })
 ```
@@ -1858,7 +1858,7 @@ let AVRecorderConfig = {
 avRecorder.prepare(AVRecorderConfig).then(() => {
   console.info('prepare success');
 }).catch((err) => {
-    console.info('prepare failed and catch error is ' + err.message);
+  console.error('prepare failed and catch error is ' + err.message);
 });
 
 ```
@@ -1901,7 +1901,7 @@ avRecorder.getInputSurface((err, surfaceId) => {
     console.info('getInputSurface success');
     surfaceID = surfaceId;
   } else {
-        console.info('getInputSurface failed and error is ' + err.message);
+    console.error('getInputSurface failed and error is ' + err.message);
   }
 });
 
@@ -1944,7 +1944,7 @@ avRecorder.getInputSurface().then((surfaceId) => {
   console.info('getInputSurface success');
   surfaceID = surfaceId;
 }).catch((err) => {
-    console.info('getInputSurface failed and catch error is ' + err.message);
+  console.error('getInputSurface failed and catch error is ' + err.message);
 });
 ```
 
@@ -1981,7 +1981,7 @@ avRecorder.start((err) => {
   if (err == null) {
     console.info('start AVRecorder success');
   } else {
-        console.info('start AVRecorder failed and error is ' + err.message);
+    console.error('start AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2018,7 +2018,7 @@ start(): Promise\<void>
 avRecorder.start().then(() => {
   console.info('start AVRecorder success');
 }).catch((err) => {
-    console.info('start AVRecorder failed and catch error is ' + err.message);
+  console.error('start AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2055,7 +2055,7 @@ avRecorder.pause((err) => {
   if (err == null) {
     console.info('pause AVRecorder success');
   } else {
-        console.info('pause AVRecorder failed and error is ' + err.message);
+    console.error('pause AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2092,7 +2092,7 @@ pause(): Promise\<void>
 avRecorder.pause().then(() => {
   console.info('pause AVRecorder success');
 }).catch((err) => {
-    console.info('pause AVRecorder failed and catch error is ' + err.message);
+  console.error('pause AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2129,7 +2129,7 @@ avRecorder.resume((err) => {
   if (err == null) {
     console.info('resume AVRecorder success');
   } else {
-        console.info('resume AVRecorder failed and error is ' + err.message);
+    console.error('resume AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2166,7 +2166,7 @@ resume(): Promise\<void>
 avRecorder.resume().then(() => {
   console.info('resume AVRecorder success');
 }).catch((err) => {
-    console.info('resume AVRecorder failed and catch error is ' + err.message);
+  console.error('resume AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2205,7 +2205,7 @@ avRecorder.stop((err) => {
   if (err == null) {
     console.info('stop AVRecorder success');
   } else {
-        console.info('stop AVRecorder failed and error is ' + err.message);
+    console.error('stop AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2244,7 +2244,7 @@ stop(): Promise\<void>
 avRecorder.stop().then(() => {
   console.info('stop AVRecorder success');
 }).catch((err) => {
-    console.info('stop AVRecorder failed and catch error is ' + err.message);
+  console.error('stop AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2280,7 +2280,7 @@ avRecorder.reset((err) => {
   if (err == null) {
     console.info('reset AVRecorder success');
   } else {
-        console.info('reset AVRecorder failed and error is ' + err.message);
+    console.error('reset AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2316,7 +2316,7 @@ reset(): Promise\<void>
 avRecorder.reset().then(() => {
   console.info('reset AVRecorder success');
 }).catch((err) => {
-    console.info('reset AVRecorder failed and catch error is ' + err.message);
+  console.error('reset AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2351,7 +2351,7 @@ avRecorder.release((err) => {
   if (err == null) {
     console.info('release AVRecorder success');
   } else {
-        console.info('release AVRecorder failed and error is ' + err.message);
+    console.error('release AVRecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2386,7 +2386,7 @@ release(): Promise\<void>
 avRecorder.release().then(() => {
   console.info('release AVRecorder success');
 }).catch((err) => {
-    console.info('release AVRecorder failed and catch error is ' + err.message);
+  console.error('release AVRecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2463,7 +2463,7 @@ on(type: 'error', callback: ErrorCallback): void
 
 ```js
 avRecorder.on('error', (err) => {
-    console.info('case avRecorder.on(error) called, errMessage is ' + err.message);
+  console.error('case avRecorder.on(error) called, errMessage is ' + err.message);
 });
 ```
 
@@ -2670,7 +2670,7 @@ videoRecorder.prepare(videoConfig, (err) => {
   if (err == null) {
     console.info('prepare success');
   } else {
-        console.info('prepare failed and error is ' + err.message);
+    console.error('prepare failed and error is ' + err.message);
   }
 })
 ```
@@ -2740,7 +2740,7 @@ let videoConfig = {
 videoRecorder.prepare(videoConfig).then(() => {
   console.info('prepare success');
 }).catch((err) => {
-    console.info('prepare failed and catch error is ' + err.message);
+  console.error('prepare failed and catch error is ' + err.message);
 });
 ```
 
@@ -2784,7 +2784,7 @@ videoRecorder.getInputSurface((err, surfaceId) => {
     console.info('getInputSurface success');
     surfaceID = surfaceId;
   } else {
-        console.info('getInputSurface failed and error is ' + err.message);
+    console.error('getInputSurface failed and error is ' + err.message);
   }
 });
 ```
@@ -2828,7 +2828,7 @@ videoRecorder.getInputSurface().then((surfaceId) => {
   console.info('getInputSurface success');
   surfaceID = surfaceId;
 }).catch((err) => {
-    console.info('getInputSurface failed and catch error is ' + err.message);
+  console.error('getInputSurface failed and catch error is ' + err.message);
 });
 ```
 
@@ -2868,7 +2868,7 @@ videoRecorder.start((err) => {
   if (err == null) {
     console.info('start videorecorder success');
   } else {
-        console.info('start videorecorder failed and error is ' + err.message);
+    console.error('start videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2908,7 +2908,7 @@ start(): Promise\<void>;
 videoRecorder.start().then(() => {
   console.info('start videorecorder success');
 }).catch((err) => {
-    console.info('start videorecorder failed and catch error is ' + err.message);
+  console.error('start videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -2948,7 +2948,7 @@ videoRecorder.pause((err) => {
   if (err == null) {
     console.info('pause videorecorder success');
   } else {
-        console.info('pause videorecorder failed and error is ' + err.message);
+    console.error('pause videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -2988,7 +2988,7 @@ pause(): Promise\<void>;
 videoRecorder.pause().then(() => {
   console.info('pause videorecorder success');
 }).catch((err) => {
-    console.info('pause videorecorder failed and catch error is ' + err.message);
+  console.error('pause videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -3026,7 +3026,7 @@ videoRecorder.resume((err) => {
   if (err == null) {
     console.info('resume videorecorder success');
   } else {
-        console.info('resume videorecorder failed and error is ' + err.message);
+    console.error('resume videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -3064,7 +3064,7 @@ resume(): Promise\<void>;
 videoRecorder.resume().then(() => {
   console.info('resume videorecorder success');
 }).catch((err) => {
-    console.info('resume videorecorder failed and catch error is ' + err.message);
+  console.error('resume videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -3104,7 +3104,7 @@ videoRecorder.stop((err) => {
   if (err == null) {
     console.info('stop videorecorder success');
   } else {
-        console.info('stop videorecorder failed and error is ' + err.message);
+    console.error('stop videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -3144,7 +3144,7 @@ stop(): Promise\<void>;
 videoRecorder.stop().then(() => {
   console.info('stop videorecorder success');
 }).catch((err) => {
-    console.info('stop videorecorder failed and catch error is ' + err.message);
+  console.error('stop videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -3180,7 +3180,7 @@ videoRecorder.release((err) => {
   if (err == null) {
     console.info('release videorecorder success');
   } else {
-        console.info('release videorecorder failed and error is ' + err.message);
+    console.error('release videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -3216,7 +3216,7 @@ release(): Promise\<void>;
 videoRecorder.release().then(() => {
   console.info('release videorecorder success');
 }).catch((err) => {
-    console.info('release videorecorder failed and catch error is ' + err.message);
+  console.error('release videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -3255,7 +3255,7 @@ videoRecorder.reset((err) => {
   if (err == null) {
     console.info('reset videorecorder success');
   } else {
-        console.info('reset videorecorder failed and error is ' + err.message);
+    console.error('reset videorecorder failed and error is ' + err.message);
   }
 });
 ```
@@ -3294,7 +3294,7 @@ reset(): Promise\<void>;
 videoRecorder.reset().then(() => {
   console.info('reset videorecorder success');
 }).catch((err) => {
-    console.info('reset videorecorder failed and catch error is ' + err.message);
+  console.error('reset videorecorder failed and catch error is ' + err.message);
 });
 ```
 
@@ -3327,7 +3327,7 @@ on(type: 'error', callback: ErrorCallback): void
 ```js
 // 当获取videoRecordState接口出错时通过此订阅事件上报
 videoRecorder.on('error', (error) => {                                  // 设置'error'事件回调
-    console.info(`audio error called, error: ${error}`); 
+  console.error(`audio error called, error: ${error}`); 
 })
 ```
 
@@ -3429,14 +3429,14 @@ createVideoPlayer(callback: AsyncCallback\<VideoPlayer>): void
 **示例：**
 
 ```js
-let videoPlayer
+let videoPlayer;
 
 media.createVideoPlayer((error, video) => {
   if (video != null) {
     videoPlayer = video;
     console.info('video createVideoPlayer success');
   } else {
-       console.info(`video createVideoPlayer fail, error:${error}`);
+    console.error(`video createVideoPlayer fail, error:${error}`);
   }
 });
 ```
@@ -3461,17 +3461,17 @@ createVideoPlayer(): Promise\<VideoPlayer>
 **示例：**
 
 ```js
-let videoPlayer
+let videoPlayer;
 
 media.createVideoPlayer().then((video) => {
   if (video != null) {
     videoPlayer = video;
     console.info('video createVideoPlayer success');
   } else {
-       console.info('video createVideoPlayer fail');
+    console.error('video createVideoPlayer fail');
   }
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -3830,7 +3830,7 @@ audioPlayer.on('finish', () => {               //设置'finish'事件回调
   audioPlayer.stop();                        //停止播放，并触发'stop'事件回调
 });
 audioPlayer.on('error', (error) => {           //设置'error'事件回调
-    console.info(`audio error called, error: ${error}`);
+  console.error(`audio error called, error: ${error}`);
 });
 
 // 用户选择音频设置fd(本地播放)
@@ -3895,7 +3895,7 @@ on(type: 'error', callback: ErrorCallback): void
 
 ```js
 audioPlayer.on('error', (error) => {      //设置'error'事件回调
-    console.info(`audio error called, error: ${error}`); 
+  console.error(`audio error called, error: ${error}`); 
 });
 audioPlayer.setVolume(3);  //设置volume为无效值，触发'error'事件
 ```
@@ -3966,7 +3966,7 @@ videoPlayer.setDisplaySurface(surfaceId, (err) => {
   if (err == null) {
     console.info('setDisplaySurface success!');
   } else {
-        console.info('setDisplaySurface fail!');
+    console.error('setDisplaySurface fail!');
   }
 });
 ```
@@ -4000,7 +4000,7 @@ let surfaceId = null;
 videoPlayer.setDisplaySurface(surfaceId).then(() => {
   console.info('setDisplaySurface success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4025,7 +4025,7 @@ videoPlayer.prepare((err) => {
   if (err == null) {
     console.info('prepare success!');
   } else {
-        console.info('prepare fail!');
+    console.error('prepare fail!');
   }
 });
 ```
@@ -4050,7 +4050,7 @@ prepare(): Promise\<void>
 videoPlayer.prepare().then(() => {
   console.info('prepare success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4075,7 +4075,7 @@ videoPlayer.play((err) => {
   if (err == null) {
     console.info('play success!');
   } else {
-        console.info('play fail!');
+    console.error('play fail!');
   }
 });
 ```
@@ -4100,7 +4100,7 @@ play(): Promise\<void>;
 videoPlayer.play().then(() => {
   console.info('play success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4150,7 +4150,7 @@ pause(): Promise\<void>
 videoPlayer.pause().then(() => {
   console.info('pause success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4175,7 +4175,7 @@ videoPlayer.stop((err) => {
   if (err == null) {
     console.info('stop success!');
   } else {
-        console.info('stop fail!');
+    console.error('stop fail!');
   }
 });
 ```
@@ -4200,7 +4200,7 @@ stop(): Promise\<void>
 videoPlayer.stop().then(() => {
   console.info('stop success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4225,7 +4225,7 @@ videoPlayer.reset((err) => {
   if (err == null) {
     console.info('reset success!');
   } else {
-        console.info('reset fail!');
+    console.error('reset fail!');
   }
 });
 ```
@@ -4250,7 +4250,7 @@ reset(): Promise\<void>
 videoPlayer.reset().then(() => {
   console.info('reset success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4277,7 +4277,7 @@ videoPlayer.seek(seekTime, (err, result) => {
   if (err == null) {
     console.info('seek success!');
   } else {
-        console.info('seek fail!');
+    console.error('seek fail!');
   }
 });
 ```
@@ -4307,7 +4307,7 @@ videoPlayer.seek(seekTime, media.SeekMode.SEEK_NEXT_SYNC, (err, result) => {
   if (err == null) {
     console.info('seek success!');
   } else {
-        console.info('seek fail!');
+    console.error('seek fail!');
   }
 });
 ```
@@ -4341,13 +4341,13 @@ let seekTime = 5000;
 videoPlayer.seek(seekTime).then((seekDoneTime) => { // seekDoneTime表示seek完成后的时间点
   console.info('seek success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 
 videoPlayer.seek(seekTime, media.SeekMode.SEEK_NEXT_SYNC).then((seekDoneTime) => {
   console.info('seek success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4374,7 +4374,7 @@ videoPlayer.setVolume(vol, (err, result) => {
   if (err == null) {
     console.info('setVolume success!');
   } else {
-        console.info('setVolume fail!');
+    console.error('setVolume fail!');
   }
 });
 ```
@@ -4406,7 +4406,7 @@ let vol = 0.5;
 videoPlayer.setVolume(vol).then(() => {
   console.info('setVolume success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4431,7 +4431,7 @@ videoPlayer.release((err) => {
   if (err == null) {
     console.info('release success!');
   } else {
-        console.info('release fail!');
+    console.error('release fail!');
   }
 });
 ```
@@ -4456,7 +4456,7 @@ release(): Promise\<void>
 videoPlayer.release().then(() => {
   console.info('release success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4561,7 +4561,7 @@ videoPlayer.setSpeed(speed, (err, result) => {
   if (err == null) {
     console.info('setSpeed success!');
   } else {
-        console.info('setSpeed fail!');
+    console.error('setSpeed fail!');
   }
 });
 ```
@@ -4595,7 +4595,7 @@ let speed = media.PlaybackSpeed.SPEED_FORWARD_2_00_X;
 videoPlayer.setSpeed(speed).then(() => {
   console.info('setSpeed success');
 }).catch((error) => {
-   console.info(`video catchCallback, error:${error}`);
+  console.error(`video catchCallback, error:${error}`);
 });
 ```
 
@@ -4712,7 +4712,7 @@ on(type: 'error', callback: ErrorCallback): void
 
 ```js
 videoPlayer.on('error', (error) => {      // 设置'error'事件回调
-    console.info(`video error called, error: ${error}`);
+  console.error(`video error called, error: ${error}`);
 });
 videoPlayer.url = 'fd://error';  //设置错误的播放地址，触发'error'事件
 ```
@@ -4966,7 +4966,7 @@ let audioRecorderConfig = {
   location : { latitude : 30, longitude : 130},
 }
 audioRecorder.on('error', (error) => {                                  // 设置'error'事件回调
-    console.info(`audio error called, error: ${error}`); 
+  console.error(`audio error called, error: ${error}`);
 });
 audioRecorder.prepare(audioRecorderConfig);                            // prepare不设置参数，触发'error'事件
 ```