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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).究竟艾恩斯能否阻止各国谋略，打造自己的理想家园。梅莉(Vill)原本是刁蛮任性的富家大小姐，父母先后身亡后，梅莉恶习难改，变本加厉。仙境天使得知后，决定给她一个教训来帮助她悔悟。于是每到日落时分，梅莉就会化身为青鸟，除非她能在三个月内做到：存善念，行善事；先人后己，舍己利人；得到一个男子的真爱之吻，否则她将永世化身青鸟。究竟梅莉能否破除咒语？在这期间又会发生怎样的意外？都是地尽其力，山泽尽其利：山上种橡树、果树、竹子。2. Increase damage: