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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?"至少自保是可以，当然了目光应该放长远一些。The starting point of JIT production is to minimize waste and make continuous improvement. Waste refers to all activities that cannot create added value. There are seven common waste phenomena in enterprises: waste of excessive production, waste of shutdown for materials, waste of handling methods, waste of processing itself, waste of inventory, waste of action and waste of manufacturing waste and defective products.即便是运送，主要也都是集中运往荥阳，毕竟哪里才是主要的都城，汉国最初的打算也是最后退守荥阳。边境小城临江，阳光聋哑学校的校车向远山飞驰，校车上，校长张亚男用手语向孩子们讲述着沿途的风光，这时，孩子们惊慌的看着前方，一辆失控的帕萨特迎面驶来，校车左右躲闪，帕萨特冲出公路，撞上路边的山体，校车内，师生们面色铁青，张亚男急急下车，正这时，一辆灰色轿车，向这边疾驰。张亚男有种不详的预感，拉起王小萌急忙折返回校车，就在司机关闭车门的瞬间，一个男人手持散弹枪跳上校车，劫持了校车上的教师和学生，与警方对峙。至此，一场正义与邪恶的较量开始了……随着时间的沉淀，他的怒火终究消下去了一些：仙人所示，东倭不可征。一场阵容豪华的政治秀。