这是一个录音程序，设置多个按钮，实现录音和播放录到的声音，并且将录音所得的数据PCM转换成WAV文件，并保存在本地的一个地址上面。-This is a recording program, set the number of buttons, to achieve the recording and playback of recorded sound, and recording the data collected will be converted to PCM WAV file, and