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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.电视剧《三军大会师》讲述了红军从1936年4月即将结束东征，红军一、二、四方面军历经西征、甘孜会师，北上、会宁大会师，将台堡大捷，重创国民党部队，展现了毛泽东、周恩来、朱德、彭德怀等一批历史风云人物，以及红军队伍中的铁家父子以及程家姐弟等一批小人物，他们在会宁大会师前后的坎坷选择和经受的历练等。一位事业平凡的单身父亲吴所为，试着和儿子吴喆好好相处，却屡遭失败，竟然因为一次车祸导致灵魂互换，从而懂得了换位思考，父子俩人终于找到了沟通和相处的方式未观测的战略级魔法，将朝鲜半岛南端的军事都市及舰队消灭了。God's mills grind slowly but surely! Human desires can really devour everything.《喵喵喵喵喵喵喵》是国内首部喵星党美食治愈萌剧。该剧集合萌宠、美食与暖男等众多精彩看点，讲述了企图占领地球的喵星小分队决定用美食的力量俘虏人类的故事，他们的计划到底能否成功呢？姜栋元、韩孝周等就参演韩国版《金色梦乡》展开讨论。同样考虑加盟的还有金大明，金义城， 金成钧等韩国男星。影片改编自伊坂幸太郎的同名原著。本片由CJ娱乐投资发行，预计2017年上半年开机。