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Good-looking, continue to be moreB) 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).If the agency fails to perform its obligations as agreed in the service agreement, the designated medical institution may lodge a complaint with the medical security administrative department. If it is verified to be true, the medical security administrative department shall order it to make corrections within a time limit and give corresponding punishment to the competent personnel and responsible personnel of the agency depending on the seriousness of the case.一时小草她们取了篮子回来，刘氏见了眼睛一亮，禁不住给了小葱一个赞赏的目光。山坡上，蒲俊瞧着沟底的熊熊大火，心道：故技重施不假，先得意着吧，后面有你受的。如果我有一千万，我就能买一栋房子。虽说越王自己也是多有顾忌的，可是徐家何尝没有担忧，若是越王真的一意孤行，采取雷霆手段未尝是没有可能的，无论到底的后果如何，倒霉的还是徐家人。