[简答题]按键控制LED,按一下按键点亮LED,再按一下按键熄灭LED。

参考答案:int buttonPin = 2;
Int ledPin = 13;
Boolean ledState = false;
Void setup() {
PinMode(buttonPin,INPUT_PULLUP);
PinMode(ledPin,OUTPUT);
}
Void loop() {
While(digitalRead(buttonPin) == HIGH){}
If(ledState == true){
DigitalWrite(ledPin,LOW);
LedState = !ledState;
}
Else
{
DigitalWrite(ledPin,HIGH);
LedState = !ledState;
}
Delay(500);
}