2007年6月15日

note :head first design pattern
摘要： The following guidelines can help you aviod OO design that violate the Dependency Inversion Principle: No variable should hold a reference to a concrete class No class should derive from a c... 阅读全文
posted @ 2007-06-15 13:00 ewan 阅读(94) 评论(0) 推荐(0)

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