适配器模式–适配多个不知道怎么写

    namespace Adapter_DesignPattern
    {
        using System;
        class Target
        {
            public virtual void Request()
            {
                Console.WriteLine("Target: general request!");
            }
        }
        class Adaptee
        {
            public void SpecialRequest()
            {
                Console.WriteLine("Adaptee: special request!");
            }
        }
        class Adapter : Target
        {
            //在这里创建不同厂家的类对象吗？
            假如是，在调用时就会调用全部厂家的处理函数 但同一时刻只能使用一家SDK             private Adaptee adaptee = new Adaptee();
            public override void Request()
            {
                adaptee.SpecialRequest();
            }
        }
        class Client
        {
            public static void Main(String[] args)
            {
                Target target = new Target();
                target.Request();
                target = new Adapter(); //使用适配器后，客户端通过调用Target对象
                                        //可以调用Adaptee
                target.Request();
                Console.Read();
            }
        }
    }