工厂方法模式

        static void Main(string[] args)
        {

            ///直接使用
            IHero tryndamere = new Tryndamere();
            tryndamere.Show();

            /// 工厂方法的使用（代码更多了，类也增加了，好处是，对象的使用耦合被屏蔽，对象创建被延迟，可以在工厂里增加一定的扩展性）
            TryndamereFactory tryndamereFactory = new TryndamereFactory();
            IHero tryndamere1 = tryndamereFactory.GetInstance();
            tryndamere1.Show();

            Console.ReadLine();


        }

    public class TryndamereFactory
    {
        public IHero GetInstance()
        {
            Console.WriteLine("Tryndamere，被创建");
            return new Tryndamere();
        }
    }

    public class Tryndamere:IHero
    {
        public void Show()
        {
            Console.WriteLine("开闭原则、对扩展开放、对修改封闭");
        }
    }

    public interface IHero
    {
        void Show();
    }