更多"下列程序的运行结果是______。
#include<iostre"的相关试题:
[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
[填空题]
[程序]
#include
#include
class B{
public:
B(char *s){name=new char[strlen(s)+1];strcpy(name,s);}
virtual void print( ){cout<<"姓名;"<
protected:
char *name;
};
class P1:public B{
public:
P1(char *s,float g):B(s){x=g;}
void print(int i)
{ cout<<"姓名:"<年薪:"<万元。 /n";}
private:
float x;
};
class P2:public B{
public:
P2(char *s,int n):B(s){ num=n;}
void print( ){cout<<"姓名;"<月工资:"<元。/n";}
private:
int num;
};
void main(void)
{
B *p;
B x("张明");
P1 y("王虎",4.2);
P2 z("李建国",5000);
p=&x;p->print( );
p=&y;p->print( );
y.print(1);
p=&z;p->print( );
}
执行以上程序后输出的第二行是() ,第四行是()。
[单项选择]分析下面程序,该程序的运行结果是( )。
#include<iostream.h>
class cmm
public:
static int m;
cmm( )
m++;
cmm(int n)
m=n;
static void testm( )
m++;
;
int cmm :: m=0;
void main( )
cmm A;
cmm B(3);
A. testm();
B. m=3
C. m=4
D. m=5
E. m=6
[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<<endl; }
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(int aa)
B. a=aa;
C. cout < < a++;
D. voidmain( )
E. Ax,y(2) ,z(3) ;
F. cout< < endl;A) 00
G. B)23
H. C)34
I. D)25