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The combination mode is also called part-to-whole mode. The combination mode combines objects into a tree structure, which is used to represent the relationship between the whole and the part. The combination mode enables clients to treat individual objects and combined objects equally. For example, in. NET, simple controls such as WinForm controls, TextBox and Label inherit from the Control class, while composite controls such as GroupBox also inherit from the Control class. The specific structure diagram of the combination mode is shown below.《大国建造》全片以“探寻建筑工程的奇迹”为主线，探秘新地标背后“中国制造、中国建造和中国创造”的奇迹。全片共6集，每集45分钟，以《极限挑战》《栋梁之材》《锤炼成器》《稳如磐石》《律动和合》《匠心巧思》，来揭秘新地标的建设故事。二十世纪末，北京印刷厂工人翦卫国，赢得厂花江明娟的好感。婚后江明娟发现翦卫国“骗”了自己，毅然生下孩子后离他而去。四姐因为喜爱翦峰，逐渐对翦卫国有了感情。翦卫国工厂倒闭去开出租，四姐拿出珍藏多年的绝版猴票，让翦卫国变卖后买房，带着翦峰一起生活。价值连城的猴票使翦卫国不敢随意出手，但绝版猴票现世的消息，却引来不少人的垂涎——都要打猴票的主意。小小一枚猴票，令翦卫国和四姐的生活皱起波澜，各色人物，在金钱诱惑前，显现出世间百态。四姐和翦卫国也在欲望面前，经受着考验。最后，翦卫国毅然将“猴票”捐出，了断所有人的念想，而他则开着自己的出租车，带着四姐和翦峰，去登记结婚！那几个军士看着他将人拖了出去，眼中凶光连闪，想要冲过去，却被领头的那人挡住了，冲他们摇头。There are five kinds of creation modes (1-5): factory method mode, abstract factory mode, singleton mode, builder mode and prototype mode.