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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.4) If different applications share the same hardware server, the version problems of the basic environment will interfere with each other, and they all need to be specially modified for configuration processing, such as java version, python version, time zone, locale, etc.没想到刘邦等候了十多日，还是还有抵挡住关中王的yòuhuò，还是进入了。游乐园工作的雷（克里斯·奥多德饰）沉迷于时间旅行，在工作中因吓坏小游客而被解雇。朋友皮特（迪恩·里浓斯·凯利饰）和业余作家托比（马克·伍顿饰）在“恐龙汉堡店”扮恐龙打工，毫无前途。三人晚上来到酒吧打发时光，雷突然遇到一位叫凯西的美女（安娜·法瑞丝饰）。凯西自称来自未来，是专门负责寻找时间漏洞的技术员，她来此是拜访名人，因为雷在未来将是“伟大的雷”，并著有《时间旅行手册》。皮特和托比不相信雷遇见了“未来美女”，认为他是异想天开编排电影。皮特去卫生间小解，没曾想竟偶然进入了时间漏洞，出来后发现酒吧全是死人，包括他自己。惊慌四措的皮特将雷和托比也拽入了漏洞，从此开始了一系列前后穿梭的时间旅行冒险。黄金商道地处雁门县与蒙古交界地带，是往来商家必经之地，土匪活动猖獗。巡警朱一书以维护商道治安、惩处走私为己任。以县长庞德坤为首的走私集团为谋取巨大利益，大量走私烟土和军火，并吸收土匪及杀手扩充实力。朱一书通过蛛丝马迹察觉到走私动向并展开调查，庞德坤设法阻止，诬陷他入狱甚至派杀手追杀以绝后患。阴谋与复仇、正义与邪恶的较量逐步展开并愈演愈烈。朱一书在流亡与探求真相过程中，经受了重重考验，从一个单纯正直的热血青年逐步转变为刚毅勇敢的英雄豪杰。在师兄曾石洛、恋人琪琪格等人的帮助下，凤凰涅槃，最终彻底粉碎庞德坤等人的重重阴谋，并找寻到挚爱。黄金商道终于复归平静