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Understand asynchronous chain of responsibility落红。Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.　　崔贵华饰演姜浩俊，他是人权促进委员会的总管调查官也是检察厅外派的调查官，是一个集中力极强，以身体支配精神的行动派。周围人都认为他正义感爆棚且冲动，但他其实是一个脑子运转得比身体快的人物。他和冷静的搭档韩允书在性格上刚好互补。How members cooperate;尹将军今天怒了，彻底与宋义决裂了。(5) the conditions of wind, waves and currents and the proximity to dangerous objects at sea;