const int redLed = 2;
const int yellowLed = 3;
const int whiteLed = 4;
const int blueLed = 5;
const int greenLed = 6;
const int askButton = 12;
// initialize Variables
int askButtonState = 0;
int awnser = 0;
void setup() {
// put your setup code here, to run once:
pinMode(redLed, OUTPUT);
pinMode(yellowLed, OUTPUT);
pinMode(whiteLed, OUTPUT);
pinMode(blueLed, OUTPUT);
pinMode(greenLed, OUTPUT);
pinMode(askButton, INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
askButtonState = digitalRead(askButton);
if (askButtonState == HIGH) {
digitalWrite(redLed, LOW); // clear Leds to
show new awnser
digitalWrite(yellowLed, LOW);
digitalWrite(whiteLed, LOW);
digitalWrite(blueLed, LOW);
digitalWrite(greenLed, LOW);
delay(100);
awnser = random(5);
switch (awnser) {
case 0: // no
digitalWrite(greenLed, LOW);
digitalWrite(yellowLed, LOW);
digitalWrite(whiteLed, LOW);
digitalWrite(blueLed, LOW);
digitalWrite(redLed, HIGH);
delay(1000);
break;
case 1: // rather not
digitalWrite(redLed, LOW);
digitalWrite(whiteLed, LOW);
digitalWrite(blueLed, LOW);
digitalWrite(greenLed, LOW);
digitalWrite(yellowLed, HIGH);
delay(1000);
break;
case 2: // maybe
digitalWrite(redLed, LOW);
digitalWrite(yellowLed, LOW);
digitalWrite(blueLed, LOW);
digitalWrite(greenLed, LOW);
digitalWrite(whiteLed, HIGH);
delay(1000);
break;
case 3: // rather yes
digitalWrite(redLed, LOW);
digitalWrite(whiteLed, LOW);
digitalWrite(yellowLed, LOW);
digitalWrite(greenLed, LOW);
digitalWrite(blueLed, HIGH);
delay(1000);
break;
case 4: // yes
digitalWrite(redLed, LOW);
digitalWrite(whiteLed, LOW);
digitalWrite(blueLed, LOW);
digitalWrite(yellowLed, LOW);
digitalWrite(greenLed, HIGH);
delay(1000);
break;
}
}
}

接下来按下开关将会得到

·拓展

·利用deepseek定义一个函数并优化led灯随机点亮代码

const int redLed = 2;
const int yellowLed = 3;
const int whiteLed = 4;
const int blueLed = 5;
const int greenLed = 6;
const int askButton = 12;

// 初始化变量
int askButtonState = 0;
int awnser = 0;

// 创建LED引脚数组，便于管理
int ledPins[] = {redLed, yellowLed, whiteLed, blueLed, greenLed};
int ledCount = 5;

void setup() {
  // 设置所有LED引脚为输出模式
  for (int i = 0; i < ledCount; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
  pinMode(askButton, INPUT);
}

void loop() {
  askButtonState = digitalRead(askButton);
  
  if (askButtonState == HIGH) {
    // 清除所有LED
    clearAllLEDs();
    delay(100);
    
    // 随机点亮一个LED
    lightRandomLED();
    
    delay(1000);
  }
}

// 自定义函数：清除所有LED
void clearAllLEDs() {
  for (int i = 0; i < ledCount; i++) {
    digitalWrite(ledPins[i], LOW);
  }
}

// 自定义函数：随机点亮一个LED
void lightRandomLED() {
  awnser = random(ledCount); // 生成0到4的随机数
  
  // 根据随机数点亮对应的LED
  for (int i = 0; i < ledCount; i++) {
    if (i == awnser) {
      digitalWrite(ledPins[i], HIGH);
    } else {
      digitalWrite(ledPins[i], LOW);
    }
  }
}