Interface1[] intt = new Interface1[] { new Dog("dddddd") };
            for (int i = 0; i < intt.Length; i++)
            {
                intt[i].GGG();
            }

 interface Interface1
    {
        void GGG();
    }

 class Dog : Pet,Interface1

{

 public void GGG()
        {
            Console.WriteLine("爬树");
        }

}

 Interface1[] intt = new Interface1[] { new Dog("dddddd") };
            for (int i = 0; i < intt.Length; i++)
            {
                intt[i].GGG();
            }