2012年5月4日
Head First Design Patterns - State Pattern
摘要： The State Pattern allows an object to alter its behavior when its internal state changes. Theobject will appear to change its class.State Pattern Diagram:State Pattern VS. Strategy Patternwith the state pattern, we have a set of behavior encapsulated in state objects; at any time thecontextis delega 阅读全文
posted @ 2012-05-04 11:25 qiangzhu 阅读(700) 评论(0) 推荐(0)