文中( 2 )处正确的答案是( )。A.derived fromB.deviated fromC.was derived fromD.was deviated from
文中( 2 )处正确的答案是( )。
A.derived from
B.deviated from
C.was derived from
D.was deviated from
相关考题:
为完成下面的程序,应在划线处填入的语句是includeusingnamespace std;class Base{pri 为完成下面的程序,应在划线处填入的语句是 #include<iostream> using namespace std; class Base { private: int x; public: Base (int i) { x=i; } ~Base(){} }; class Derived:public Base { public: ______________//完成类Derive构造函数的定义 }; int main() { Derived Obj; return 0; }A.Derived(int i):Base(i){}B.Derived(){}C.void Derived (int i):Base(i){}D.Derived(int i){Base(i);}
在下列横线处应添加的语句是( )。 class Base{public:void fun(){cout<<"Base::fun"<<end1;}}; class: Derived: public Base { public: void fun() { ______//显示调用基类的fun函数 cout<<"Derived::fun"<<end1; } };A.Derived::funB.Base::fun();C.Pubic::funD.fun();
为完成下面的程序,应在划线处填入的语句是()。includeusingnamespacestd;classBase{pr 为完成下面的程序,应在划线处填入的语句是( )。 #include <iostream> using namespace std; class Base { private: int x; public: Base(int i) { x=i; } ~Base(){} }; class Derived : public Base { public: _______________ //完成类Derive构造函数的定义 }; int main() { Derived Obj; return 0; }A.Derived(int i):Base(i){}B.Derived(){}C.voidDerived(int i):Base(0){}D.Derived(int i){Base(i);}
如有基类Base和派生类Derived,实例化对象Base b; Derived d;叙述正确的是:A.Derived* pDev = new Base();B.Derived类中不能定义与Base类同名的成员,以免引用时引起歧义;C.Base* pb =d ; Derived* pd = b; 为正确的赋值操作;D.Base rb = d; Base bb = d; 为正确的赋值操作;