/定义两个按键 key1,key2
sbit key1=P3^4;
sbit key2=P3^5;
//定义两个灯led1,led2
sbit led1=P1^0;
sbit led2=P1^1;
void mian()
{
if (key1==0)
delay(5)
if (key1==0) //按键1按下
{
led1=0;
}
while(!key1);
delay(5);
while(!key1);
if (key2==0)
delay(5)
if (key1==0) //按键1按下
{
led2=0;
}
while(!key1);
delay(5);
while(!key1);
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