modify the doc code format

Signed-off-by: Nwangzx0705 <wangzx0705@thundersoft.com>

zh-cn/application-dev/media/avscreen-capture-development.md

@@ -23,33 +23,37 @@
 1. 创建AVScreenCapture实例capture。
 
     ```c++
-
     OH_AVScreenCapture* capture = AVScreenCapture_Create();
     ```
 
 2. 配置屏幕录制参数。
       创建AVScreenCapture实例capture后，可以设置屏幕录制所需要的参数，可以参考下面的案例。
-   ```c++
 
+    ```c++
     OH_AudioCaptureInfo miccapinfo = {
         .audioSampleRate = 16000,
         .audioChannels = 2,
         .audioSource = OH_MIC
     };
+
     OH_VideoCaptureInfo videocapinfo = {
         .videoFrameWidth = display->GetWidth(),
         .videoFrameHeight = display->Height(),
         .videoSource = OH_VIDEO_SOURCE_SURFACE_RGBA
     };
+
     OH_AudioInfo audioinfo = {
         .micCapInfo = miccapinfo,
     };
+
     OH_VideoInfo videoinfo = {
         .videoCapInfo = videocapinfo
     };
+
     OH_RecorderInfo recorderinfo = {
         .url = name
     };
+
     OH_AVScreenCaptureConfig config = {
         .captureMode = OH_CAPTURE_HOME_SCREEN,
         .dataType = OH_ORIGINAL_STREAM,
@@ -57,13 +61,13 @@
         .videoInfo = videoinfo,
         .recorderInfo = recorderinfo
     };
+
     OH_AVScreenCapture_Init(capture, config);
     ```
 
 3. 设置麦克风开关。
      
     ```c++
-
     bool isMic = true;
     OH_AVScreenCapture_SetMicrophoneEnabled(capture, isMic);
     ```
@@ -71,7 +75,6 @@
 4. 回调函数的设置，主要监听录屏过程中的错误事件的发生,音频流和视频流数据的产生事件。
      
     ```c++
-
     OH_AVScreenCaptureCallback callback;
     callback.onAudioBufferAvailable = OnAudioBufferAvailable;
     callback.onVideoBufferAvailable = OnVideoBufferAvailable;
@@ -81,49 +84,42 @@
 5. 调用StartScreenCapture方法开始进行屏幕录制。
      
     ```c++
-
     OH_AVScreenCapture_StartScreenCapture(capture);
     ```
 
 6. 调用StopScreenCapture()方法停止录制。
      
     ```c++
-
     OH_AVScreenCapture_StopScreenCapture(capture_);
     ```
 
 7. 调用AcquireAudioBuffer()获取音频原始码流数据
      
     ```c++
-
     OH_AVScreenCapture_AcquireAudioBuffer(capture, &audiobuffer, type);
     ```
 
 8. 调用AcquireVideoBuffer()方法停止录制。
      
     ```c++
-
     OH_NativeBuffer* buffer = OH_ScreenCapture_AcquireVideoBuffer(capture, &fence, &timestamp, &damage);
     ```
 
 9. 调用ReleaseAudioBuffer方法释放音频buffer。
      
     ```c++
-
     OH_ScreenCapture_ReleaseAudioBuffer(capture, type);
     ```
 
 10. 调用ReleaseVideoBuffer()方法停止录制。
      
     ```c++
-
     OH_ScreenCapture_ReleaseVideoBuffer(capture);
     ```
 
 11. 调用release()方法销毁实例，释放资源。
      
     ```c++
-
     OH_AVScreenCapture_Release(capture);
     ```