为使程序的输出结果为: Base:: fun 那么应在下列程序画线处填入的正确语句是( )。 #include <iostream> using namespace std; class Base { public: void fun () { cout<<"Base: :fun"<<end1; } }; class Derived : public Base { public: void fun ( ) { cout<<"Derived: :fun"<<end1; } }; int main ( ) { Base a,*pb; Derived b; _________; pb->fun(); //调用基类的成员函数 fun() return 0 ; }
A.pb=&a
B.pb=b
C.pb=&b
D.pb=&Base
第1题:
按解释中的要求在下列程序划线处填入的正确语句是:() #include <iostream.h> class Base{ public: void fun() {cout<<"Base::fun"<<endl;} }; class Derived:public Base{ public: void fun() { _______________________//在此空格处调用基类的函数fun() cout<<"Derived::fun"<<endl;} };
A.fun();
B.Base.fun();
C.Base::fun();
D.Base->fun();
第2题:
有如下程序: #include<iostream> using namespace std; classBase{ public: void fun{ __________________ cout<<”Base::fun”<<endl;} }; class Derived:public Base{ public: voidfun{ cout<<”Derived::fun”<<endl: } }; int main{ Derived d; A fun; return 0; } 已知其执行后的输出结果为: Base::fun Derived::fun 则程序中下画线处应填入的语句是( )。
A. Base.fun;
B.Base::fun;
C.Base—>fun;
D.fun;
第3题:
有如下程序: #include<iostream> using namespace std; class Base { public: void fun() { cout<<"Base::fun"<<endl; } }; class Derived: public Base { public: void tim() } ____________ cout<<"Derived:: fun"<<endl; } }; int main() { Derived d; d.fun(); return O; } 已知其执行后的输出结果为: Base::fun Derived::fun 则程序中下划线处应填入的语句是
A.Base.fun();
B.Base::fun();
C.Base->fun();
D.fun();
第4题:
应在下列程序画线处填入的正确语句是 ( )。 #include <iostream> using namespace std; clas Base { public: void fun() { cout<<"Base::fun"<<end1; } }; class Derived : public Base { void fun() { ________________//显示调用基类的函数 fun() cout<<"Derived::fun"<<end1; } };
A.fun();
B.Base.fun();
C.Base::fun();
D.Base->fun();
第5题:
有如下程序:#include <iostream>using namespace std;class Base { public: void fun() {cout<<"Base:: fun"<<end1; }};class Derived: public Base ( public: void fun() { ____________________________ cout<<"Derived:: fun"<<end1; }};int main() { Derived d; D. fun(); return O;}已知其执行后的输出结果为:Base:: funDerived:: fun则程序中下划线处应填入的语句是( )。
A.Base. fun ();
B.Base:: fun ();
C.Base->fun();
D.fun()
第6题:
在下列程序画线处填入的正确语句是( )。 #include <iostream> using namespace std; class Base { public: void fun() { cout<<"Base::fun",<<end1; } }; class Derived:public Base { void fun() { ______________ //显式调
A.fun();
B.Base.fun();
C.Base::fun();
D.Base->fun();
第7题:
有如下程序: #include <iostream> using namespace std; class Base { public: void fun() { cout<<"Base::fun"<<endl; } }; class Derived : public Base { public: void fun() { ______ cout<<"Derived::fun"<<endl; } }; int main() { Derived d; d.fun(); return 0; } 已知其执行后的输出结果为: Base::fun Derived::fun 则程序中下划线处应填入的语句是( )。
A.Base.fun();
B.Base::fun();
C.Base->fun();
D.fun();
第8题:
下列程序中划线处正确的语句是( )。 # include <iostream> using namespace std; class Base { public: void fun(){cout<<"Base:: fun" <<endl;} }; class Derived:public Base { void fun() { ______ ∥显式调用基类的函数fun() cout<<"D
A.fun();
B.Base.fun();
C.Base::fun();
D.Base- >fun();
第9题:
有如下程序:
#include +
using namespace std ;
#include
using namespace std;
class Base
{
public:
void fun(){cout<<"Base::fun"<
};
class Derived:public Base
{
public:
void fun()
{
cout<<"Derived::fun"<
}
};
int main()
{
Derived d;
d.fun();
return 0;
}
已知其执行后的输出结果为:
Base::fun
Derived::fun
则程序中下划线处应填入的语句是
A . Base.fun();
B . Base::fun()
C . Base->fun()
D . fun();