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"Little Charlie, have you made a wish?"After 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?""Do you regret it?"张槐狐疑万分，这么丑的女子，怎么菊花说她美呢？见礼完毕，早有人摆上茶果，大家说笑吃茶。他写出一首首好听的歌曲，只为逗张小桐一笑。顾涧大喜，忙将闲杂人等，包括何风都请了出去，只留下大夫在旁，随时救助。The event statement creates an event. Each event consists of two main parts, the first part is event scheduling