单项选择题
A.DirectoryB.FileC.StreamWriterD.Path
A.LengthB.CountC.SizeD.Capacity
A.访问修饰符enum 名称{内容…}B.abstract class 名称{内容…}C.[访问修饰符]interface 名称{内容…}D.访问修饰符struct 名称{内容…}
A.void Show(){}和void Show(string name){}B.string Show(string name){}和void Show(string name){}C.string Show(int age){}和void Show(string name){}D.void Show(int age){}和void Show(int age,string name){}
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