A.帶參構造函數(shù) B.無參構造函數(shù) C.拷貝構造函數(shù) D.賦值重載函數(shù)
A.成員函數(shù)B.數(shù)據(jù)成員C.對象D.友元函數(shù)
A.x.a B.x.a() C.x一〉GetValue() D.x.GetValue()