#include "reg52.h"

sbit P10=P1^0;
sbit P11=P1^1; sbit P12=P1^2;sbit P13=P1^3;sbit P14=P1^4;
sbit P15=P1^5;
sbit P16=P1^6;
sbit P17=P1^7;

unsigned char dis[11]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x67,0x00}; 
unsigned char num;
unsigned char num2,num3,num4,num5,num6,num7;
disp()
{ num=num2+num3+num4+num5+num6+num7;
  P0=dis[num];
  P11=0;
}

scan()
{  
   while(!P10)
   {  if(!P12)
      {  num2=1;while(!P12);}
	  
	  if(!P13)
	  {  num3=1;while(!P13);}
	  
	  if(!P14)
	  {  num4=1;while(!P14);}
      
	  if(!P15)
	  {  num5=1;while(!P15);}
	  
	  if(!P16)
	  {  num6=1;while(!P16);}
	  
	  if(!P17)
	  {  num7=1;while(!P17);}
	  
	  disp();
    }
}

main()
{ P1=0xff;P11=1;
  while(1)
  {if(!P10)
   {num=0;scan();}
   else
   {num5=0;num6=0;num7=0;num2=0;num3=0;num4=0;}	 
  }
}