Builder Pattern:StringBuilder
Factory Method:IHttpHandlerFactory
Adapter Pattern:COM Interop、DataAdapter
Decorator Pattern:BufferedStream、CryptoStream
Composite Pattern:Enterprise Library2.0中的ObjectBuilder
Facade Pattern:Duwamish
Flyweight Pattern:.NET中的String类型
Template Method:服务器控件
Command Pattern:MVC
Iterator Pattern:IEnumerator
Oberver Pattern:委托和事件
Strategy Patterm:System.Configuration.Provider、IComparer
Singleton Pattern:Remoting的Singleton