#include<reg52.h>
sbit key = P1^0;//按键
void delay(unsigned int time)
{
unsigned int i,j;
for(i=0; i<time; i++)
for(j=0; j<1000; j++)
{;}
}
void mian()
{
unsigned int temp =0x00;
while(1)
{
if(key == 0)
{
delay(20);//适当延时,消除按键抖动,自己看实际情况修改时间
if(key == 0)
temp = ~temp;
}
P2 = temp;
}
}
追问有没有仿真图呢