编辑代码

// 无参函数，输出通用的生日快乐歌
void singHappyBirthday() {
  print("Happy birthday to you!");
  print("Happy birthday to you!");
  print("Happy birthday dear someone!");
  print("Happy birthday to you!");
}

// 有参函数，输出带有特定人名的生日快乐歌
void singHappyBirthdayTo(String name) {
  print("Happy birthday to $name!");
  print("Happy birthday to $name!");
  print("Happy birthday dear $name!");
  print("Happy birthday to $name!");
}

// 主函数
void main() {
  // 调用无参函数，对自己唱生日快乐歌
  singHappyBirthday();

  // 调用有参函数，对朋友赵启龙唱生日快乐歌
  singHappyBirthdayTo("赵启龙");

  // 打印个人信息
  print("个人信息：赵启龙，23951060105");
}