//宏定义LED和摁键引脚

#define LED_PIN  2
#define BUTTON_PIN  14

// int led_pin = 2;
// int button_pin = 14;

//定义led逻辑值
int led_logic = 0;

//记录led状态是否被更改的值
bool status = true;

void setup() {
  //配置引脚末世
  pinMode(LED_PIN, OUTPUT);
  //接地给高电平、接电给低电平
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

void loop() {
  //按键消抖
  if (!digitalRead(BUTTON_PIN)) {
    //睡眠10毫秒，如果还是高电平，说明是按下不是抖动
    delay(10);
    if (!digitalRead(BUTTON_PIN) && status) {
      //开灯关灯
      led_logic = !led_logic;
      digitalWrite(LED_PIN, led_logic);
      //状态值更改
      status = !status;
    }else if (digitalRead(BUTTON_PIN)){
      //再次按下给状态值还原
      status = true;
    }
  }
}