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When traveling, it is inevitable that you will have a lot of luggage on hand. At this time, you can use the subway's paid locker.匆忙浮躁的都市中，四个与音乐相关的男男女女看似偶然般地邂逅了，他们分别是第一小提琴手卷真纪（松隆子 饰）、大提琴手世吹雀（满岛光 饰）、中提琴手家森谕高（高桥一生 饰）以及第二提琴手别府司（松田龙平 饰）。仿佛是对音乐的共同志向，他们组建了名为“甜甜圈洞”的四重奏乐队，暂时落脚于别府家位于轻井泽的别墅，过起了与世隔绝的人生。然而四个人终究无法超脱世俗存在，除了最基本的吃饭问题，每个人似乎都被各自的秘密所牵扯纠缠。其中雀与真纪“邂逅”的原因，恰恰正是因为真纪丈夫的不辞而别。　　在村支书吴中旺、解放军小分队、民警马千里、大学生刘嘉川等人的带领下，凤凰村村民度过最初的困难时期。道路疏通后，心理医生柳曼、“富二代”铁力等人纷纷来到凤凰村。　　米德威奇，一个上班族居住的英格兰小镇，自由开明、渴求进步，由各种小家庭和富人街组成。这里没有太多的事情发生，其中也有着充分的理由。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.