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The code for creating the object is encapsulated and the specific factory class is instantiated, thus achieving the purpose of encapsulation and instantiation. Encapsulating the code that creates the object in one place can also achieve the purpose of reuse and is more convenient for later maintenance. This also means that when the customer instantiates the object, he will only rely on the interface and not on the specific implementation. Help us to better achieve interface programming rather than implementation, making the code more flexible to cope with future extensions.Written in this article: Xia Junshan'} 1e 2k, H 5i/K' q & e 2_0Q (~-S政客Peter因性丑闻和政治丑闻被捕入狱后，妻子Alicia只能结束“家庭主妇”的生活，独自支撑家庭的重任。Alicia重拾自己婚前的职业——辩护律师。作为芝加哥一所知名法律公司的初级合伙人，Alicia受到了老朋友Will的欢迎。Will是她读法律学校时的同学，也是公 司的冠名合伙人。他想看看时隔十三年之后，这位昔日叱咤风云的女强人在法庭上会有什么样的表现。第四季最末Will和Alicia的关系捉摸不透，Peter和Alicia夫妻关系又似改善，Alicia与Cary新律所的创立会遭遇哪些波澜，而Kalinda又能否加入他们，Diane是否离开律所去做法官，一切谜底尽在给力的第五季。可以说是小股零星战斗。The root of driving people to do addition (efficiency optimization) and even multiplication (efficiency optimization with leverage) is actually a greedy and impetuous heart. Of course, there are geniuses in the world, but it is unwise to bet on such a small probability event as being a genius. However, people would rather pursue the dream of ignorance than think about the most essential laws and simple methods of investment.