更多"下列程序的输出结果是非曲直 【15】 。
#include<iost"的相关试题:
[填空题]下列程序的输出结果是非曲直 【15】 。
#include<iostream, h>
class base int x, y;
public:
base(int i, int j)x=i; y=j;
virtual int add( )return x+ y;
;
class three: public base int z;
public:
three(int i, int j, int k) :base(i, j)z=k;
int add( ) return (base:: add( )+z);
;
void main( ) three * q=new three(lO,20,30);
cout<<q->add( )<<end1;
[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" < < 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
[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]下列程序的输出结果是
#include<iostream.h>
class Myclass
public : Myclass( int i=0,int j=0)
x=i;
y=j;
void show( )cout<<"x="<<x<<" "<"y="<<y<<endl;
void show( )constcout<<"x="<<" "<<"y="<<y<<endl;
privated:
int x; int y;
;
void main( )
Myclass my l (3,4);
const my2(7,8);
my l.show( );my2.show( );
A. x=4,y=3;x=7,y=8
B. x=3,y=4;x=7,y=8
C. x=7,y=8;x=4,y=3
D. x=8,y=7;x=7,y=8
[单项选择]下列程序的输出结果是
#include<iostream.h>
class Myclass
public:Myclass(int i=0,int j=0)
x=i;
y=j;
void show( ) cout < <"x=" < < x < <" " <"y=" < < y < < endl;
void show( ) constcout < <"x=" < <" " < <"y=" < < y < < endl;
privated:
int x; int y;
;
void main( )
Myclass my1(3,4) ;
const my2(7,8) ;
my1.show( ) ;my2.show( ) ;
A. x=4,y=3;x=7,y=8
B. x=3,y=4;x=7,y=8
C. x=7,y=8;x=4,y=3
D. x=8,y=7;x=7,y=8