设计模式---抽象工厂模式+反射+配置文件

using System;

using System.Collections.Generic;

using System.Text;

using System.Reflection;

using System.Configuration;

namespace ConsoleApplication1

{

    internal interface SportMan

    {

        void Come();

    }

     class ChineseSportMan : SportMan 

    {

        public  void Come()

        {

            Console.WriteLine("中国运动员来了~~~");

        }

    }

     class RussianSportMan : SportMan 

    {

        public  void Come()

        {

            Console.WriteLine("俄罗斯运动员来了~~~");

        }

    }

     class TheController

     {

         public static SportMan CreateSportMan()

         {

             //string s = (string)ConfigurationSettings.AppSettings["Nation"];

             return (SportMan)Assembly.Load("ConsoleApplication1").CreateInstance("ConsoleApplication1."+ConfigurationSettings.AppSettings["Nation"].ToString());

            //ConfigurationSettings.AppSettings[];

             //return new ChineseSportMan();

         }

     }

     class Client

     {

         public static void Main()

         {

             TheController.CreateSportMan().Come();

             //s.Come();

             //SportMan  c=(SportMan)Assembly.Load("ConsoleApplication1").CreateInstance("ConsoleApplication1.ChineseSportMan");

             //c.Come();

         }

     }

}