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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.Sooner or later, unpredictable attacks will abandon your classifier and will have a significant impact.GoPu Cunxin Endorsement: About 1 Million RMB per Year Mao Amin Endorsement: 1 Million RMB per Year黄夫人点点头，叹气道：平白的出这样事……老嬷嬷忙笑道：也不算坏事。博伤透了心可是他必须在没有了甘雅之后重新生活，6年过去了，甘雅与自己的死党晓凤和博在同一个地方工作，博知道以后让甘雅做自己的秘书，让她为抛弃自己而去付出代价，可是当博的新女友妤恩一看见甘雅就觉得不顺眼，所以经常找甘雅的茬，至于博也讨厌一直粘在甘雅身边的追求她的男员工弩。