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发布时间:2023-10-22 23:12:38

[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’);

更多"下列程序的运行结果是______。 #include<iostrea"的相关试题:

[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’);

[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]下列程序的运行结果是
#inClUde<iostream.h>
class Location
private:
int X,Y;
pubhc:
void init(int=0,int=0) ;
void valueX(int val) X=val;
int valueX( ) retum X;
void valueY(int val) Y=val;
int valueY( ) retum Y;;
void Location: :init(int initX,int initY)
X=initX;
Y=initY;
Void main( )
Location A,B;
A. init( ) ;
A. valueX(5) ;
cout < < A. valueX( ) < < endl < < A. valueY( ) < < endl;
B. init(6,2) ;
B. valueY(4) ;
cout < < B. valueX( ) < < endl < < B. valueY( ) < < endl;
A. 5
B. 0
C. 5
D. 0
[单项选择]下列程序的运行结果是 #include<iostream.h> class Location{ private: int X.Y; public: void init(int=0,int=0); void valueX(int val){X=val;} int valueX( ){ return X;} void valueY(int val){Y=val;} int valueY( ){return Y;}}; void Location::init(int init X,int init Y) { X=initX; Y=initY;} void main( ) { Location A,B; A.init( ); A.valueX(5); cout<<A.valueX( )<<endl<<A.valueY( )<<endl; B.init(6,2); B.valueY(4); cout<<B.valueX( )<<endl<<B.valueY( )<<endl;}
A. 5 0 6 4
B. 0 0 6 4
C. 5 0 6 2
D. 0 0 6 2
[单项选择]下面程序的运行结果是 #include<iostream.h> class base{ protected: int a; public: base( ) {cout < < "0";} }; class base l: virtual base{ public: base l ( ) {cout < <"1";} }; class base 2: virtual base{ public: base2 ( ) {cout < <"2";} }; class derived: public base 1, public base2{ public: derived( ) {cout < < "3";} }; void main( ) { derive obj; cout < < endl; } A) 0123 B) 3120 C) 0312 D) 3012
[单项选择]下面程序的运行结果是
#include<iostream.h>
class base
protected:
int a;
public:
base( )cout <<"0";

class basel:virtual base
public:
basel ( ) cout <<"1";

class base2:virtual base
public:
base2( )cout <<"2";

class derived:public basel,public base2
public:
derived( )cout <<"3";

void main( )

derived obj;
cout <<end1;

A. 0123
B. 3120
C. 0312
D. 3012
[单项选择]下列程序的运行结果是
#include<iostream.h>
class A

int a;
public:
A( )a=0;
A(int aa)

a=aa;
cout<<a++;


void main( )

A x,y(2),z(3);
cout<<end1;

A. 00
B. 23
C. 34
D. 25
[单项选择]分析下面程序,该程序的运行结果是( )。
#include<iostream.h>
class TestClass

public;
static int m;
TestClass ( )

m++;

TestClass(int n)

m=n;

static void test( )

m++;

;
int TestClass::m=0;
void main( )

TestClass A;
TestClass B(3);
A.test( );
TestClass::test( );
tout<<"m="<<B.m<<end1;

A. m=3
B. m=4
C. m=5
D. m=6

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