【51单片机】【STC89C52(A2版)】2-4LED流水灯PLUS

#include <STC89C5xRC.H>

void Delay1ms(unsigned int xms)  //@12.000MHz

{

unsigned char i, j;

while(xms)

{

 i = 2;

j = 239;

do

{

 while (--j);

} while (--i);

 xms--;

}

}

void main()

{

while(1)

{

 P2=0XFE;//1111 1110

 Delay1ms(1000);

 P2=0XFD;//1111 1101

 Delay1ms(5000);

 P2=0XFB;//1111 1011

 Delay1ms(1200);

 P2=0XF7;//1111 0111

 Delay1ms(100);

 P2=0XEF;//1110 1111

 Delay1ms(1100);

 P2=0XDF;//1101 1111

 Delay1ms(500);

 P2=0XBF;//1011 1111

 Delay1ms(300);

 P2=0X7E;//0111 1111

 Delay1ms(700);

}

}