获取摄像头数据，并录制为wav格式 简单的练习代码，需要改进的地方很多，如果谁知道怎么设置码率，还忘在评价中告知，不胜感激-Get camera data, and recorded as wav format simple exercises code, need to improve a lot, if anyone knows how to set bitrate, also forgot to inform the evaluation should be grateful