更多"下列程序的输出结果是______。 #include<iostrea"的相关试题:
[填空题]下列程序的输出结果是______。
#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(10,20,30);
cout<<q->add( )<<endl;
[单项选择]下列程序的输出结果是
#include
class Myclass
public:Myclass(int i=0,intj=0)
x=i;
y=j;
void show( ) cout < < "x=" < < x < < " " < "y=" < < y < < end1;
void show( )const cout < < "x=" < < " " < < "y=’ < < y < < end1;
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
[单项选择]下列程序的输出结果是 #include class Myclass {
public:Myclass(int i=0,intj=0) { x=i;
y=j; } void show( ) { cout < < "x=" < < x
< < " " < "y=" < < y < < end1;} void show( )const { cout < < "x=" <
< " " < < "y=’ < < y < < end1;} 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
[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;
[填空题]下列程序的运行结果是______。
#include<iostream.h>
class Base
public:
void f(int x)cout<<"Base:"<<x<<endl;
;
class Derived:public Base
public:
void f(char*str)cout<<"Derived:"<<str<<endl;)
;
void main(void)
Base*pd=new Base;
pd=new Derived;
pd->f(’a’);
[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:My class(inti=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( )
Myclassmy1(3,4);
const my2(7,8);
myl.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