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随后她开始看《白发魔女传》，顿时惊为天人，江湖中竟然还能有练霓裳这样一个女子，而后《笑傲江湖》描绘出的那个阴谋迭起的残酷江湖，更是让她大呼过瘾。One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.五千年前，对于修行有着无数憧憬的少年，却因体质特殊而无法突破炼体期，进入下一个修炼境界。 他从远古神话时代一直修炼到了现代社会，站在繁华都市中，炼体期九万九千四百四十二层的轩辕铭。 给自己定了一个小目标：先修炼到炼体期十万层！　　一次偶然中，奥利弗被警察逮捕，所幸得到了好心的老先生布莱罗（亨利·斯蒂芬森 Henry Stephenson 饰）收留，一辈子颠沛流离的奥利佛总算体会到了家的滋味。不幸的是，扒手团伙却不愿意放过奥利弗，他们绑架了他，其中，一个名叫南希（Kay Walsh 饰）的女孩对奥利弗心生恻隐，她决定不惜违抗老大的命令，尽自己所能帮助这个可怜的孩子。The Original class is the original class, which contains the attribute value to be saved and creates a memo class to save the value value. The Memento class is a memo class, and the Storage class is a class that stores memos and holds an instance of the Memento class. This pattern is well understood. Look directly at the source code:Little Charlie nodded.　　站在40岁的边缘，人生仍然有着许多闪闪发光的选择和亮点。