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发布时间:2024-03-16 23:40:20

[单项选择]下面程序输出的结果为
   #include" iostream.h"
   class A
   
    public:
     A( ) cout < < "CLASS A" < < end1;
     ~ A( )
  ;
  class B:public A
  
  public:
   B( ) cout < < "CLASS B" < < end1;
   ~ B( )
  ;
  void main( )
  
  A * p;
  p=new B;
  B * q;
  q=new B;

A. CLASS A
B. CLASS A
C. CLASS A
D. CLASS A

更多"下面程序输出的结果为   #include' iostream.h' "的相关试题:

[简答题]给出下面程序输出结果。
#include<iostream.h>
class Base
private:
int Y;
public:
Base(int y=0)y=y;cout<<"Base("<<y<<")/n";
~Base( )cout<<"~Base( )/n";
void print( )cout<<Y<<" ";

class Derived:public Base
private:
int Z;
public:
Derived(int y,int z):Base(y)
Z=z;
cout<<"Derived("<<y<<","<<z<<")/n";

~Derived( )cout<<"~Derived( )/n";
void print( )
Base::print( );
cout<<Z<<endl;


void main( )
Derived d(10,20);
d.print( );

[单项选择]下面程序输出的结果为 #include"iostream.h" class A { public: A( ){cout<<"CLASS A"<<endl;} ~A( ){} }; class B:public A { public: B( ){cout<<"CLASS B"<<endl;} ~B( ){} }; void main( ) { A*p; p=new B; B *q; q=new B; } A)CLASS A    CLASS B B)CLASS A    CLASS B    CLASS B C) CLASS A CLASS B CLASS A CLASS B D) CLASS A CLASS B CLASS B CLASS B
[单项选择]下面程序输出的结果为
#include"iostream.h”
class A

public:
A( ){cout<<"CLASSA"<<endl;}
~A( ) {}
};
class B:public A

public:
B( ){cout<<"CLASS B"<<endl;}
~B( ){}
};
void main( )

A*p;
p=new B;
B*q;
q=new B;

A. CLASS A CLASS B CLASS B CLASS B
B. CLASS A CLASS B CLASS A CLASS B
C. CLASS A CLASS B CLASS B
D. CLASS A CLASS B
[单项选择]下面程序输出的结果为 #include"iostream.h" class A { public: A( ){cout<<"CLASSA"<<endl;} ~A( ) {} }; class B:public A { public: B( ){cout<<"CLASSB"<<endl;} ~B( ) {} }; void main( ) { A * p; p=new B; B *q; q=new B; }
A. CLASS A CLASS B
B. CLASS A CLASS B CLASS B
C. CLASS A CLASS B CLASS A CLASS B
D. CLASS A CLASS B CLASS B CLASS B
[简答题]

给出下面程序的输出结果
#include < iostream >
using namespace std;
class A
{
private: int X, Y;
public : A ( int myx, int myy) { X = myx; Y = myy ;}
void show ( ) { cout << "X =" << X << " Y = " << Y << endl;}
};
class B : public A
{
private : int H, W;
public: B ( int myx, int myy, int myh, int myw) : A ( myx, myy) [ H = myh ; W = myw;}
void show ( ) { cout << "H = " << H << " ; W = " << W << endl; }
};
void main( )
{
B d(1,2,3,4) ;
d. show ( ) ;
}


[单项选择]下面程序的输出结果是
  # include <iostream.h>
  class example
  
    int a;
  public:
    example (intb) a=b++;
    void print ( )a=a+1; cout << a <<" ";
    void print ( ) const cout << a <<" ";
  ;
  void main ( )
  
    example x (3);
    const example y (2);
    x. print ( );
    y.print ( );

A. 2 2
B. 4 3
C. 4 2
D. 3 2
[单项选择]下面程序的输出结果是
#include<iostream.h>
class A
public:
A( ) cout < < "construtA" < < endl;
Virtual~A( ) cout < < "destructA" < < endl;;
class B: public A
;
class C:public A
;
class D:public B,public C
;
void main( )
D d;
A. constructA
B. constructA
C. constructA
D. constructA
[单项选择]下面程序输出的结果为( )。
#inClUde”iostream.h”
Class A
public:
A( )cout<<“CLASS A”<<endl;
~A( )<);
class B:public A
public:
B( )cout<<”CLASSB”<<endl;
~B( );
void main( )
A*p;
p=new B;
B *q;
q=new B;
A. CLASS A
B. CLASS A
C. CLASS A
D. CLASS A
[简答题]给出下面程序的输出结果。
#include<iostream.h>
class example
int a;
public:
example(int b=5)a=b++;
void print( )a=a+1;cout<<a<<" ";
void print( )const
cout<<a<<endl;

void main( )
example x;
const exahaple y(2);
x.print( );
y.print( );

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