.NET架构演化--从简单需求说起

因为渴求进步，所以分享我所理解的设计模式。同时也为了抛砖引玉，因为你我都需要成长!

客户需求1：请为我们电子商务网站的电子类产品计算价格，并打印显示出来.可能出现的一个实现版本代码如下：

View Code

View Code

View Code

View Code

View Code

View Code

View Code

View Code

View Code

1 public interface IGoodsFactory
2     {
3         Goods MakeMP4();
4         Goods MakePad();
5         Goods MakePhone();
6     }

View Code

1 public interface IStore
2     {
3         IEnumerator CreateGoods();
4         void Print(IEnumerator ienumerator);
5     }

View Code

public interface IStrategy
{
Double DisCounts { get; }
}

View Code

View Code

View Code

View Code

1  protected override void Init()
2         {
3             Name = "Phone";
4             Price = 4000;
5             DisCountsStrategy = new HalfPercentStrategy();
6         }

客户代码调用：

View Code

1 static void Main(string[] args)
2         {
3             IStore store = new GoodsStore(new GoodsFactory());
4             IEnumerator items = store.CreateGoods();
5             store.Print(items);
6         }