交通灯测试
交通灯测试c程序voiddelay(unsignedintcnt)
{
while(--cnt);
}
//voidDelayUs2x(unsignedchart)
//{
//while(--t);
//}
///*------------------------------------------------
//mS????,??????unsignedchart,????
//unsignedchar??????????,??????
//0~255??????12M,?????????
//------------------------------
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