#include <reg52.h>
#include <intrins.h>
#define uint unsigned int;
#define uchar unsigned char;
uchar temp;
sbit sj=P1^4;
void delay(uint z);


void main()
{sj=0;
temp=0xfe;
P0=temp;

 while(1)
 {
 delay (500);
 temp=_crol_(temp,1);
    }

}

void delay(uint z)
{uint x,y;
 for(x=z;x>0;z--)
     for(y=110;y>0;z--);
}

沒(méi)有在表格里面添加內(nèi)容。