+--

闪烁灯制作

#include<reg52.h>
#define uint unsigned int
sbit gate1=P2^0;
sbit gate2=P2^1;
sbit gate3=P2^2;
sbit gate4=P2^3;
 
   void main()
   {
	  	 uint i,y;
         for(i=1000;i>0;i--)
	     for(y=1000;y>0;y++); 
	     gate1=!gate1;
		 
         gate1=0;
  	  	 gate2=0;
		 gate3=0;
		 gate4=0;

         
        gate2=!gate2;
         
         gate3=!gate3;
         
         gate4=!gate4;
         
	  
	  
   
   
   }