#include<reg51.h>
#define uchar unsigned char
void delay(uchar x)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
void main() //主程序
{
while(1)
{
P0=0Xfe;
P2=0X06;
delay(1);
P0=0Xfd;
P2=0X5b;
delay(1);
P0=0Xfb;
P2=0X4f;
delay(1);
P0=0Xf7;
P2=0X66;
delay(1);
P0=0Xef;
P2=0X80;
delay(1);
P0=0Xdf;
P2=0X6d;
delay(1);
}
}