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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.May our country's national civilization quality keep up with the increasingly developed science and technology!Wait, is this kind of drama familiar?尹旭点头道：那就好，传寡人旨意。庄尼从外太空来到地球的高能职业学院学习人类的技能，已经顺利学完了三个专业，结交了一些地球人朋友，他接下来将要继续学习另外三个专业：汽修、服装表演、空乘，在这三个专业的学习过程中跟同学产生了不少的摩擦，最后化干戈为玉帛，并且一起打败了校外的社会人员，最终大家成为了朋友，庄尼顺利的从学校毕业，并且学会了人类身上最重要的品质——爱，他微笑着离开了地球。5.2. 7 Hole design requirements这赵家跟郑家张家也是拐弯抹角的亲戚：赵锋堂舅的闺女嫁给了葫芦的舅舅，也就是刘蝉儿的娘，这是一。