#include <reg51.h>
sbit K1 = P0^0;
sbit led1 = P2^0;
sbit led2 = P2^1;
sbit led3 = P2^2;
sbit led4 = P2^3;
sbit led5 = P2^4;
sbit led6 = P2^5;
sbit led7 = P2^6;
sbit led8 = P2^7;
void delayms(unsigned char ms)  // 延时子程序
{      
unsigned char i;
while(ms--)
{
  for(i = 0; i < 120; i++);
}
}
main()
unsigned char cishu;
while(1)
  {
   cishu++;
   if K1==0
   {
     if cishu==1
    {led1==0;}
    else if  cishu==2
    {led2==0;}
    else if  cishu==3
    {led3==0;}
    else if   cishu==4
    {led4==0;}
    else if   cishu==5
    {led5==0;}
    else if    cishu==6
    {led6==0;}
    else if    cishu==7
    {led7==0;}
    else if  cishu==8
    {led8==0;}
   
   
    }
  }