public link unit tone1 {} = driver.tone1;
public link bit OS_time = driver.OS_time;
public link void OS_init(){} = driver.OS_init;
public link void _Ϊ_Ϊ_(bit n1,bit n3,bit n5){} = driver.play;
public link void _ֹͣ_(bit n1,bit n3){} = driver.stop;
public link void OS_run(){} = driver.OS_run;
