// 定义引脚
const int ledPins[] = {3, 4, 5, 6, 7, 8, 9, 10};

// 定义流水灯的延迟时间（毫秒）
const int delayTime = 200;

// 初始化引脚
void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
}

// 主循环
void loop() {
  // 点亮6,7
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  delay(delayTime);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);

  digitalWrite(5, HIGH);
  digitalWrite(8, HIGH);
  delay(delayTime);
  digitalWrite(5, LOW);
  digitalWrite(8, LOW);

  digitalWrite(9, HIGH);
  digitalWrite(4, HIGH);
  delay(delayTime);
  digitalWrite(9, LOW);
  digitalWrite(4, LOW);

  digitalWrite(10, HIGH);
  digitalWrite(3, HIGH);
  delay(delayTime);
  digitalWrite(10, LOW);
  digitalWrite(3, LOW);

  digitalWrite(9, HIGH);
  digitalWrite(4, HIGH);
  delay(delayTime);
  digitalWrite(9, LOW);
  digitalWrite(4, LOW);

  digitalWrite(5, HIGH);
  digitalWrite(8, HIGH);
  delay(delayTime);
  digitalWrite(5, LOW);
  digitalWrite(8, LOW);



}