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II. Test SurfaceAfter understanding the history and classification of design patterns, how should we learn design patterns? Before learning the design pattern, readers must establish a kind of consciousness, that is, the design pattern is not only a method and technology, but also an idea and a methodology. It has nothing to do with the specific language. The main purpose of learning design patterns is to establish object-oriented ideas, program to the interface as much as possible, with low coupling and high cohesion, so that the programs you design can be reused as much as possible. "Specious. Learning design patterns can better understand object-oriented ideas. Design patterns are some design skills and tricks. Don't rise to ideas and methodologies, okay?"　　该片预计投资3000万港币，春节后才能拍竣，上映时间暂定2008年底。[3 sets of special training programs for the simplest strength lifting]二太太对着郑老太太骂道：你这卑贱的老村妇。田遥就傻了。