设计模式 － 复杂工厂

using System;
namespace Factory1
{
    //雷锋基类
    class LeiFeng
    {
        public void Sweep()
        {
            Console.Writeline ("sweep");
        }
        public void Wash()
        {
            Console.Writeline ("Wash");
        }
        public void BugRice()
        {
            Console.WriteLine ("BugRice");
        }
    }
    //学雷锋的大学生类
    class Undergraduate:LeiFeng
    {

    }
    //学雷锋的志愿者类
    class Voluntieer:LeiFeng
    {
    }
    //雷锋 工厂类
    interface IFactory
    {
        LeiFeng CreateLeiFeng();
    }

    //大学生 工厂类
    class UndergraduateFactory:IFactory
    {
        public LeiFeng CreateLeiFeng()
        {
            return new Undergraduate ();
        }
    }
    //志愿者 工厂类
    class VolenteerFactory:IFactory
    {
        public LeiFeng CreateLeiFeng()
        {
            return new Undergraduate ();
        }
    }
    class MainClass
    {
        public static void Main (string[] args)
        {
            IFactory factory = new UndergraduateFactory ();
            LeiFeng student = factory.CreateLeiFeng ();
            student.BugRice();
            student.Sweep ();
            student.Wash ();
        }
    }
}