/*** P1口接8個發光2級管（LED）,編寫程序，使這8個LED輪流被點亮-----流水燈效果   ***/
#include <reg51.h>

Delay() //延時
{
	int counter1,counter2;
	for(counter1=0;counter1<255;counter1++)
		for(counter2=0;counter2<100;counter2++)
			;
}

Circle()//循環
{
	unsigned char value=0x01;//設置要點亮的燈為第一盞
	unsigned char counter=0;
	//初始化P1口
	P1=0x00;
	while(1)
	{
		for(counter=0;counter<8;counter++)
		{
			P1= value;//點亮一盞燈
			Delay();
			P1=0x00;//全部熄滅,消除影響
			value=value<<1;
		}
	}

}
void main()
{
	Circle();
}