#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar seg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80};
sbit K1=P3^2;
void delay(uint z);
void delay(uint z){
uint i,j;
for(i=0;i<200;i++)
for(j=0;j<z;j++);
}
void int0() interrupt 0 using 1{
uchar i;
for(i=1;i<9;i++){
P2=seg[i];
delay(200);
}
P2=0xff;
}
void main(){
uchar i;
IE=0x81;
TCON=0x01;
while(1){
for(i=1;i<9;i++){
P0=seg[i];
delay(200);
}
}
}
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