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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.怪物是独特、可爱而又善良的。有一天，他遇见了一位年轻女性，这让怪物很苦恼。他不想面对人类，因为他知道自己这副模样绝不可能被接纳。但是，他又想面对人类，跟人类说话，一起欢笑。接着，怪物对人类产生了爱慕。然而这是一份无法实现的感情。因为怪物的体内隐藏着秘密，他不能接触人类。可悲的怪物无法抑制地思慕着人类，毫无保留地爱着人类。而人们也因此受到命运的捉弄，内心动摇却坚强生活着。"Liu Guiduo and the captain went to repair the communication equipment and sent a distress signal, saying that they had asked for help anyway, but they did not know when they would come."在Percy（帕西）被击毙，Amanda（阿曼达）失踪后，“Division”（组织）被Ryan（诺亚·比恩 Noah Bean 饰）接管，成为一个正式为国效力的秘密组织。可是由于组织的特殊性依然见不光，用来对抗恐怖组织和收服Percy（帕西）过往的残留余党。而这次的“Division”除了保留以前所有的特工，还有Nikita（李美琪Maggie Q 饰）和搭档兼未婚夫Michael（夏恩·韦斯特Shane West 饰）、有着特工与富豪双重身份的Alex（琳德西·冯塞卡Lyndsy Fonseca 饰）、怪才计算机专家Brikhoff（亚伦·斯坦福Aaron Stanford 饰）。这一次众人又要面对如何危险的处境呢？又还会有哪些前两季大家喜欢的人物还会出现呢？//and B methods; Method A and method B write specific business logic in subclasses in turn.Beast Division Ruug