试题与答案

对于拷贝初始化构造函数,正确的描述是( )。A.在C++语言中,如果不自定义类的拷

题型:单项选择题

题目:

对于拷贝初始化构造函数,正确的描述是( )。

A.在C++语言中,如果不自定义类的拷贝初始化构造函数,则每个类都有默认的拷贝初始化构造函数

B.必须为每个类定义拷贝初始化构造函数

C.如果要使用拷贝初始化构造函数,则必须在类中先定义

D.当定义了类的构造函数时,如果要使用拷贝初始化构造函数,则必须定义拷贝初始化构造函数

答案:

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