#include<reg52.h>
#define uint unsigned int
unsigned int i, j=0 ;
unsigned char code zz[]={0x08,0x04,0x02,0x01}; //Õy×a
unsigned char code fz[]={0x01,0x02,0x04,0x08}; //·′×a
void delay(uint ms)
{
uint t;
while(ms--)
for(t=0;t<110;t++);
}
void INT0_() interrupt 0
{
j+= 1;
if(j == 3)
j= 0;
delay(20);
}
void main()
{
IT0 = 1;
EX0 = 1;
EA = 1;
while(1)
{
if(j==0) //í￡
{
P2=0xf0;
delay(100);
}
if(j==1) //Õy
{
for(i=0;i<4;i++)
{
P2=zz[i];
delay(150);
}
}
if(j==2) //·′
{
for(i=0;i<4;i++)
{
P2=fz[i];
delay(150);
}
}
}
}
|
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
