sbitkey=P1_0;

sbitled=P1_1;

#defineled_on0

main()

{

while(key)

{

led=!led_on;

}

while(!key)

{

led=led_on;

delay(100);

led=!led_on;

delay(100);

}

}

上面這個是按下閃，鬆開滅的程式，稍微改一下，就可以做到要求的功能。

main()

{

while(!key)

{

led=!led_on;

}

while(key)

{

led=!led_on;

}

while(!key)

{

led=led_on;

delay(100);

led=!led_on;

delay(100);

}

while(key)

{

led=led_on;

delay(100);

led=!led_on;

delay(100);

}

}