/*任务7：按下K1，LED呈现流水灯，K1松开，全灭*/
#include"reg52.h"
#include"intrins.h"
sbit K1=P0^0;
void delay(unsigned int c) //误差 0us
{
while(c--);
}
void main()
{
unsigned char i;
P1=0X00;
K1=1;
while(1)
{
if(K1==0)
{
P1=0X01;
for(i=0;i<8;i++)
{
P1=_crol_(P1,1);
delay(10000);
}
P1=0X00;
}
}
}
