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();
        }
    }
}