（C#）工厂方法模式

namespace 工厂方法模式
{
    class Program
    {
        static void Main(string[] args)
        {
            IFactory factory = new CUnderGraduate();
            Leifeng student = factory.CreateLeiFeng();
            student.Sweep();
            student.Wash();
            student.BuyRice();

            Console.ReadLine();
        }
    }

    /// <summary>
    /// 所有工厂中公共执行的操作的类
    /// </summary>
    class Leifeng
    {
        public void Sweep()
        {
            Console.WriteLine("扫地");
        }
        public void Wash()
        {
            Console.WriteLine("洗衣");
        }
        public void BuyRice()
        {
            Console.WriteLine("买米");
        }
    }

    /// <summary>
    /// 创建工厂接口
    /// </summary>
    interface  IFactory
    {
        Leifeng CreateLeiFeng();
    }

    /// <summary>
    /// 工厂需要实例化的类
    /// </summary>
    class UnderGraduate : Leifeng
    {}

    /// <summary>
    /// 工厂需要实例化的类
    /// </summary>
    class Voluteers:Leifeng
    { }


    /// <summary>
    /// 工厂，用来实例化类
    /// </summary>
    class CUnderGraduate:IFactory
    {
        public Leifeng CreateLeiFeng()
        {
            return new UnderGraduate();
        }
    }

    /// <summary>
    /// 工厂，用来实例化类
    /// </summary>
    class CVoluteers : IFactory
    {
        public Leifeng CreateLeiFeng()
        {
            return new Voluteers();
        }
    }

}