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是，能不翻就不翻。Therefore, learning design patterns, The first thing to do is to understand which aspects of design patterns are available to developers, Then, the principle, timing and method of each design pattern are studied respectively, that is to say, under what circumstances should a certain design pattern be used? When understanding the timing of a certain design pattern, it is also necessary to understand what consequences will be caused if this design pattern is not used at this time. After understanding the principle and usage of each pattern, more importantly, learning the object-oriented thinking mode, after mastering the object-oriented thinking mode, looking back at the design pattern, you will have a deeper understanding. Finally, learning the design pattern, you must study hard and practice more. "I agree with the last sentence very much."　　1937年秋，令日军闻风丧胆的抗联三军十二团团长耿殿君在一夜之间神秘失踪。不久，一股报号“十三省”的土匪忽然出现在日军的心脏地带哈尔滨肇源地区。他们是十三条汉子和一个大脚女人。无人知晓他们的来头，亦不知他们想干什么。The reason why the blue blood flag and Wanfu Mo enemy are put together is that both skills can achieve the purpose of reducing injuries.所以刘邦算得上一个有为之主，比之中原一带的众多诸侯王强得多。话罢，他拂袖下山，不望补充道：好好查。Show magic power, this set of IBM is only used as a framework for strategic issues discussion and leadership promotion from all levels and dimensions for actual combat and instrumentalization. Once again, it fully reflects Huawei's core concept when it introduced IPD from IBM in 1998: rigidity first, optimization later, and solidification later. This is exactly what an old IBM employee called Huawei's terrible "learning ability" and "execution ability".