请编写程序实现以下功能，在一个程序中完成以下功能中的三种花色，亮灯跑马灯，暗灯跑马灯，亮灯乒乓灯，暗灯跑马灯（包括上移下移），一隔一点亮，二隔二点亮，四个灯交替点亮。

以下是使用 Arduino 编写的程序，可以实现上述功能：

const int led1 = 2;  // 三种花色
const int led2 = 3;
const int led3 = 4;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
}

void loop() {
  // 亮灯跑马灯
  digitalWrite(led1, HIGH);
  delay(100);
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  delay(100);
  digitalWrite(led2, LOW);
  digitalWrite(led3, HIGH);
  delay(100);
  digitalWrite(led3, LOW);
  
  // 暗灯跑马灯
  digitalWrite(led1, LOW);
  delay(100);
  digitalWrite(led2, LOW);
  digitalWrite(led1, HIGH);
  delay(100);
  digitalWrite(led3, LOW);
  digitalWrite(led2, HIGH);
  delay(100);
  digitalWrite(led1, LOW);
  digitalWrite(led3, HIGH);
  delay(100);
  
  // 亮灯乒乓灯
  digitalWrite(led1, HIGH);
  delay(200);
  digitalWrite(led2, HIGH);
  delay(200);
  digitalWrite(led1, LOW);
  delay(200);
  digitalWrite(led2, LOW);
  delay(200);
  
  // 暗灯跑马灯（上移下移）
  digitalWrite(led1, LOW);
  delay(100);
  digitalWrite(led3, LOW);
  digitalWrite(led2, HIGH);
  delay(100);
  digitalWrite(led1, HIGH);
  digitalWrite(led2, LOW);
  delay(100);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, LOW);
  delay(100);
  
  // 一隔一点亮
  digitalWrite(led1, HIGH);
  delay(100);
  digitalWrite(led1, LOW);
  delay(100);
  digitalWrite(led2, HIGH);
  delay(100);
  digitalWrite(led2, LOW);
  delay(100);
  digitalWrite(led3, HIGH);
  delay(100);
  digitalWrite(led3, LOW);
  delay(100);
  
  // 二隔二点亮
  digitalWrite(led1, HIGH);
  delay(200);
  digitalWrite(led1, LOW);
  delay(200);
  digitalWrite(led2, HIGH);
  delay(200);
  digitalWrite(led2, LOW);
  delay(200);
  digitalWrite(led3, HIGH);
  delay(200);
  digitalWrite(led3, LOW);
  delay(200);
  
  // 四个灯交替点亮
  digitalWrite(led1, HIGH);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  delay(100);
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, LOW);
  delay(100);
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, HIGH);
  delay(100);
  digitalWrite(led1, HIGH);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, LOW);
  delay(100);
  digitalWrite(led1, HIGH);
  digitalWrite(led2, LOW);
  digitalWrite(led3, HIGH);
  delay(100);
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, HIGH);
  delay(100);
  digitalWrite(led1, HIGH);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, HIGH);
  delay(100);
}