一、类功能：
copyright:emperor electric technology of ShenZhen author:tangyingzhong contact:[email protected] version:v1.0.0 date:2018/2/7
a.打开系统音频设备
b.播放PCM数据
c.暂停播放
d.继续播放
e.停止播放
copyright:emperor electric technology of ShenZhen author:tangyingzhong contact:[email protected] version:v1.0.0 date:2018/2/7