使用带参数的对象作为类成员

 class CStudent

...{

public:

CStudent(int age = 16)

...{

       m_age = age;

}

private:

    int m_age;

}

class CClass

...{

lpublic:

       CClass()

...{  
    
}

private:

CStudent m_student1;

CStudent m_student2(10);            // 试图声明一个m_age = 10的成员

                    // 错误error C2059: syntax error:’constant’
 
}