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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.翘儿握着拳头，也跟着点头，她心理还是有些没底的，可丈夫都铺到这步了，自己不能输。世界级的盗贼黛丝·婕特·柯瓦斯基才刚出狱，就被一群古怪且危险的罪犯逼的重操旧业。胡宗宪同样发愁，放汪直的亲生儿子上船，无异于放虎归山，倘若汪直拍屁股走人，之后他便对大明再无顾忌。故事讲述了冷漠孤独的苏墨在一场突如其来的车祸中险些丧命，恰好遇到会功夫的少女叶欣欣的出手相救活了下来。一年后，少女叶欣欣以实习生的身份进入到了苏墨的公司，苏墨一眼便认出了叶欣欣，而叶欣欣完全没有认出苏墨。 就这样，苏墨一点点靠近叶欣欣，并慢慢爱上了这个大脑简单，做事冲动，但率性正直的可爱姑娘。　　就算Lex死了，Luthor大厦还是没有清空。最近的住户是骗子Tess Mercer，他根据Lex的指令开始取代控制LuthorCorp，还有其所有的项目，包括Daily Plantet的勘察。Tess有种难以言喻的狡猾，神秘的出现在我们角色的生活中。不要很久Tess的注意力就会转向Clark。不过Clark也觉察到了她的企图，对她过去的所作所为还有新的神秘面纱都已经了如指掌。不过Tess的决心仍然坚如磐石，就是要找到Lex Luthor，她相信他一直还活着。