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⑥ If the connection is long and the interaction between the client and the server is not frequent, then the connection between the client and the server will always be maintained and the corresponding threads will always exist. However, due to infrequent communication, a large number of threads will be vacant for a large amount of time.简家是民国一户没落乡绅人家，四个女儿，性格各异。简太太最大的心愿就是把女儿们嫁出去，从此衣食无忧。富家子丁子辉、宋文熙的到来让简家所在小镇爆发一场讨婿战，大女儿博得丁子辉之心，二人感情虽因门第差距经历波折，但最终获得子辉家庭认可。宋文熙虽几次与二女儿如恬“交恶”，但他却发现自己不知不觉坠入爱河。当年救过文熙一命的程碧娆深爱文熙，为阻止文熙与如恬在一起结盟文熙仇家柳天宇。天宇对如恬尽施情人计，在天宇求婚的关键时刻，文熙出现，揭露了天宇拐骗文萱致其怀孕的行为，如恬醒悟。天宇陷害文熙，令其事业重创、身陷牢狱，如恬运用自己的聪明才智，找到文熙无辜受害的证据，文熙平息事业波澜，有情人终成眷属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).看着他满脸惊喜的模样，永平帝嘴角抽了抽，怀疑他早知内情，又不好说什么，只得装作心怀大慰的模样，不住颔首。Create multiple instances representing different users and call the above two methods for each instance.　WHYNOT MEDIA原创剧《@账号已删除》讲述了想以转学为契机开始新生活的两位同名少女，签订秘密契约在各自学校交换身份生活的故事。他愣了一会，才跟着追进去，早不见人影了。