C# 委托和事件：从猫和老鼠的故事看事件

　　

　　　　1. 委托的含义：

　　 （MSDN）A delegate declaration defines a reference type that can be used to encapsulate a method with a specific signature.A delegate instance encapsulates a static or an instance method.Delegates are roughly similar to function pointers in C++;however,delegates are type-safe and secure.