更多"有如下程序: #include(iostream> using n"的相关试题:
[填空题]有如下程序:
#include <iostream>
using namespace std;
class PARENT
{
public:
PARENT( ) { cout <<"PARENT"; }
};
class SON : public PARENT
{
public:
SON( ) {cout << "SON"; }
};
int main( )
{
SON son;
PARENT *p;
p = &son;
return 0;
}
执行上面程序的输出是______。
[单项选择]有如下程序
#include<iostream>
using namespace std;
class base
public:
virtual void f1( )
cout<<"F1Base";
virtual void f2( )
cout<<"F2Base";
;
class derive:public base
void f1( )
cout<<"F1 Derive";
void f2(int x)
cout<<"F2 Derive";
;
int main( )
base obj1,*p;
derive obj2;
p=& obj2;
p->f1( );
p->f2( );
return ( );
)
执行后的输出结果是( )。
A. F1Derive F2Base
B. F1Derive F2Derive
C. F1Base F2Base
D. F1Base F2Derive