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这时林白问道：你的《笑傲江湖》小说的游戏版权，打算如何处理？不打算卖，留着自己开发。英武帝忙叫起。Factory method: Create a single object, which is used in Abstract Factory.These cars and dolls are both ordinary and grotesque. For 24-month-old female babies, they cannot be classified according to the two categories of dolls and cars, but 24-month-old male babies can classify cars, but cannot classify dolls.帕于（亚瑞克·阿莫苏帕西瑞 Arak Amornsupasiri 饰）、法哈（Pattarasaya Kreuasuwansri 饰）和纳姆（拉查雯·万薇瑞亚 Ratchawin Wongviriya 饰）是学生时代的好友，三人之间感情十分要好。一直以来，纳姆都将对于帕于的感情深深的藏在心底，因为她知道，帕于真正喜欢的其实是法哈。Visitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia