#include<reg51.h>
int seg[10] = {0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7c, 0x07, 0x7f, 0x67};
sbit red = P3^0;
sbit yellow = P3^1;
sbit green = P3^2;
void delay(unsigned char t);
void main()
{ unsigned int i,d1,d2,j,k;
	while(1)
  { red=yellow=green=0;
	for(i=0;i<=60;i++)
   {
    red=1;
    d1=(i%10);
		d2=(i/10);
		j=d1;
		P0=seg[j];
		k=d2;
	P1=seg[k];
	delay(100);
   }
    red=0;
	for(i=0;i<=15;i++)
   {
    yellow=1;
    d1=(i%10);
		d2=(i/10);
		j=d1;
		P0=seg[j];
		k=d2;
	P1=seg[k];
	delay(100);
   }
    yellow=0;
    for(i=0;i<=30;i++)
   {
    green=1;
    d1=(i%10);
		d2=(i/10);
		j=d1;
		P0=seg[j];
		k=d2;
	P1=seg[k];
	delay(100);
   }
    green=0;
  }

}
void delay(unsigned char t)
	{ unsigned int i,j;
		for(i=0;i<t;i++)
		 for(j=0;j<255;j++);
	}