Wang's project

my AudioControl
I think push all the files doesn't matter
第一次修改

AudioControl应该为一个Service.通过开一个线程来控制音量
Revert "第一次修改"

This reverts commit d09e7268f65813c776ea61a0182bf2b558781ecc.
Revert "Revert "第一次修改""

This reverts commit f09b4e5cc0847e34e82b8ec10f1ac9385737cae6.
改了个名字
We collected our thought again

We find that Xu and I should do two different thread,and one Service is
enough