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任何時(shí)候,只要創(chuàng)建類或結(jié)構(gòu), 就會調(diào)用它的構(gòu)造函數(shù).Whenever a class or struct is created, its constructor is called.然后它變成明顯如何調(diào)用它.And then it becomes obvious how to call it.如果該控件具有任何子控件,該代碼將以遞歸方式調(diào)用它自身.The code recursively calls itself if the cont...