code about led_shake

 //write by:cyt
 //Project Name:Led on/off
 //Time:2017-2-10
 #include<reg51.h>
 void delay(int c)
 {
     int a=;
     int b=;
     for(;c>;c--)
     {
         for(;a>;a--)
             for(;b>;b--)
                 ;
     }
 }
 void main()
 {

     delay();

     while()
     {
         unsigned char i=;
         delay();
         P0 = 0x00;
         delay();
         P0 = 0xff;
     }
 }
                 

led_shake