基于Qt5，利用QAudioOutPut类来实现音频数据的播放和录制。可以显示播放进度，设置时间间隔。使用前要在.pro中加入 QT+=mulitimedia -Based Qt5, use QAudioOutPut class to implement playback and recording audio data. You can display the playback progress, set the time interval. Before use to join "