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小葱和秦淼对下塘集的街巷自然熟悉无比。B) Design principles. Many people have listed seven principles, such as single duty principle, opening and closing principle, Richter substitution principle, dependence inversion principle, interface isolation principle, composite reuse principle and Dimit principle. LSP, I elevated it to one of the three cornerstones of the object-oriented paradigm; Single responsibility and interface isolation are mainly used as the principle of responsibility division in object-oriented analysis/OOA, which you can not pay much attention to at this time. Relying on the inversion principle, I throw it away as garbage, because the opening and closing principle or directly "relying on abstract type principle" already contains the essence of relying on the inversion principle, while the dross of relying on the inversion principle is inherited by IoC. Of course, the pullback, I emphasize very much. Therefore, you need to master the abstract dependency principle (OCP), one-way dependency principle (including the learning of callbacks) and the minimum dependency principle (composite reuse principle, Dimit rule).90后青年唐一修立志成为匡扶正义的干警，在一次执行任务过程中，在医院意外邂逅90后女孩古静。她出生在一个警察家庭，同样心怀从警的梦想，却在海外曾遭遇意外，陷入深度昏迷。因唐一修的误打误撞，古静终于清醒过来，且复健后各项身体机能都恢复正常。然而，古静记不得与意外有关的一切，只是脑海中时常有个受伤的男子出现。在李局长亦父亦师般的鼓励下，古静重拾梦想，通过重重考试、训练当上警察。因为一桩新的案子，唐一修和古静再度相遇，二人互相支持让案件真相大白。此外，古静从小就记忆力过人，她对细节的分析思考能力，与唐一修的实践经验相配合，二人互相的搭档，越发默契。在此过程中，唐一修知晓古静受到往事困扰，答应帮她找回记忆。两人在破案过程中，与刑侦队的领导和伙伴们齐心协力,一心为民，成为有担当的优秀的90后人民警察······2. Factory modelStocks have double-click and double-kill, as do investors themselves. Many unknown people rely on the classic record of a certain year or a certain year, and their performance has soared and their popularity has soared. This is actually a double-click process. This is undoubtedly a lucky good thing in itself, but if you are praised for kidnapping, you will only cheat yourself in the end, and then bitter double killings are almost inevitable. There are not many fresh passages in the investment plot, and the main characters are changed frequently. An iron law in the business world is that there must be high barriers to excess returns. This bumpy truth will not change because we invest in stocks or because we choose different investment styles.上世纪20年代，出身没落皇族之家的新女性佟毓婉因救命之恩寄情于勇士周霆琛，却被迫奉父母之命嫁给实业家杜瑞达之子杜允唐。佟毓婉埋下心中苦楚，在杜家复杂家境中逆境求生，成为上海商界呼风唤雨的女大亨。丈夫杜允唐纨绔不羁，却是毓婉生意上最佳搭档。周霆琛投身革命。毓婉少时伙伴黎绍峰以乞儿之身冒充黎家独子，后将妹妹黎雪梅献给军阀沈之沛，又投靠日本洋行，与杜氏实业争夺码头开发。佟毓婉与恋人周霆琛，丈夫杜允唐，友人黎雪梅，仇人黎绍峰，孪生姐妹青萍、红羽之间产生了一系列情感纠葛，也经历了一系列权、利、欲交织的阴谋。经过军阀混战、华洋商战、北伐战争等烽火岁月。最终佟毓婉在烽火乱世中参透盛衰离合，为革命捐出全部身家，与丈夫杜允唐隐居东北小镇。-Guo Cheng (Sponsor of the Public Reading Association)