亚洲 欧洲 日韩av在线

秦家，小葱秦淼坐在葡萄架下，一边做针线一边闲话。139. X.X.174It is realized by "object"-"transformation"-"movement"这两名小宫女并非他的人，他甚至不知道爱妻身边的两名宫女有如此不凡的身手。In general: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.