07-简单工厂(不属于设计模式)

1. 简介

 　　严格意义上的说，简单工厂不属于23中设计模式，这里抛砖引玉，引出后面的工厂方法和抽象工厂两种设计模式。

 　  简答工厂违背：单一职责原则、开闭原则、迪米特法则。

2. 核心代码

    /// <summary>
    /// 简单工厂类
    /// </summary>
    public class simpleFactory
    {
        public static IPeople CreateInstance(PeopleKind kind)
        {
            IPeople iPeople = null;
            switch (kind)
            {
                case PeopleKind.Chinese:
                    {
                        iPeople = new Chinese();
                        break;
                    }
                case PeopleKind.Janpanese:
                    {
                        iPeople = new Janpanese();
                        break;
                    }
                case PeopleKind.America:
                    {
                        iPeople = new America();
                        break;
                    }
            }
            return iPeople;
        }

        //复习 反射+简单工厂+配置文件（IOC）  http://www.cnblogs.com/yaopengfei/p/6891286.html

        public enum PeopleKind
        {
            Chinese=0,
            Janpanese=1,
            America=2
        }

    }

   static void Main(string[] args)
        {
            //满足依赖倒置原则
            IPeople iPeople1 = simpleFactory.CreateInstance(simpleFactory.PeopleKind.Chinese);
            IPeople iPeople2 = simpleFactory.CreateInstance(simpleFactory.PeopleKind.America);
            IPeople iPeople3 = simpleFactory.CreateInstance(simpleFactory.PeopleKind.Janpanese);
            iPeople1.Eating();
            iPeople2.Eating();
            iPeople3.Eating();
            Console.ReadKey();
        }