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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).尘世里，生死同，一诺重千金板栗问道：怎么说？黄豆道：玉米失去记忆，误被人当做大苞谷带走。为了说和花心的哥哥奥布朗斯基和嫂子多丽濒临破败的婚姻，美丽贵妇安娜·卡列尼娜乘坐火车来到莫斯科。她在当地邂逅骑兵军官渥伦斯基，后者风度翩翩，英俊迷人，令多丽的妹妹凯蒂神魂颠倒，也让已为人妇的安娜心中若有所动。忌惮周遭的风言风语，安娜压抑内心的情感，乘夜返回彼得堡的家中。醉心名利的丈夫亚历山大·卡列宁，似乎全然无法体恤妻子心中的苦闷。未过多久，渥伦斯基尾随来至彼得堡，安娜再也无法闭锁那充满爱火和渴望的心门…剧照 (6张)讲述了龙眼寺一对奇葩蜜探的乌龙探案之旅，最终查明真相，守护神都安宁的奇幻故事。