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Public class Adapter extensions Source implements Targetable {One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.武侠剧搭配喜剧，怎么看都有些别扭。属下以为，他或许对君上有些用处，所以带了回来。有趣有趣。该剧主要讲述乾隆四十年至六十年，陕西状元、监察御史王杰和军机大臣、上书房总师傅朱珪为民族和国家利益，不顾个人身家性命安危，与大贪官和珅进行殊死的斗争，并协助嘉庆皇帝扳倒和珅的历史故事。 [1] 于2002年3月18日在成都电视台一套首播。摇滚明星的私生子、曾在阿富汗失去了一条腿的退伍军人科莫兰·斯特莱克（Cormoran Strike），如今开了一家破破烂烂的侦探事务所。大学心理学肄业的罗宾·艾拉科特（Robin Ellacott）偶然来到这间事务所做临时雇员，一下子就喜欢上了这份工作。独腿侦探和能干的助手配合默契，开始解决一桩桩疑点重重的案件……本剧改编自J·K·罗琳以“罗伯特·加尔布雷斯”为笔名创作的侦探小说系列第三本《罪恶生涯》。