简单工厂模式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 简单工厂模式
{
    class Program
    {
        static void Main(string[] args)
        {
            //通过工厂创建一个产品的实例
            SteamedBread sb = Factory.CreateInstance();
            Console.WriteLine("馒头{0}元一个！", sb.Price);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 简单工厂模式
{
    public class SteamedBread
    {
        public SteamedBread()  // 构造方法
        { }
        private double price = 0.5;
        public double Price
        {
            get { return price; }
            set { price = value; }
        }
    }

    public class Factory
    {
        public static SteamedBread CreateInstance()  // 创建一个馒头(SteamedBread)对象
        {
            return new SteamedBread();
        }
    }
}