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Rights protection!笑う頭脳 橋爪功 鷲尾いさ子Think about whether we can expand and draw inferences from other examples.台湾神剧《家有仙妻》将重拍，由郭靖宇监制，原版导演伍宗德加盟，目前已开始筹备。在新版《家有仙妻》中，四位主要角色的姓名、职业都和老版不同，女主角陈仙琦是时尚杂志社的助理，男主角肖家佑则是初入职场的菜鸟律师，但延续了老版“仙镯奇缘”的设置。Let's talk about the concept of rules first, and then explain it in a popular way.The principle of opening and closing means opening to expansion and closing to modification. When the program needs to be expanded, the original code cannot be modified, but the original code should be expanded to achieve a hot plug effect. Therefore, a summary of one sentence is: in order to make the program scalable, easy to maintain and upgrade. To achieve this effect, we need to use interfaces and abstract classes, etc. We will mention this point in the later specific design.懵然不知的情况下，竟然多出这么一个仇人来。