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婆子丫头们惊恐地望着小葱，竟然忘了去扶主子。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?"郑家、张家和秦家向来走得近，几家孩子也常在一块玩。张槐大惊，张嘴就要呵斥他，说皇帝赐的人，你敢使唤去干杂活。若是紫茄姑娘坚持不肯嫁给他，他必定完璧归赵，决不食言。以此片献给改革开放三十周年赵山贵是东江纵队的老战士，由于妻子早早去世，他含辛茹苦地抚养四个儿子并为他们取名建、设、家、乡。但家乡石岗村穷苦不堪，老大赵可建与老三赵可家分别于六十年代和七十年代逃港，小儿子赵可乡也欲逃港，被父亲当场打断了腿。老二赵可设是石岗大队长兼民兵连长，造化弄人，忠诚善良、对党信仰坚定的可设却要把枪口指向心底深爱着的插队女知青，意欲逃港的林笑怡……