更多"有以下程序: #include<iostream> #incl"的相关试题:
[单项选择]有以下程序
#include <iostream>
#include <string>
using namespace std;
class base
private:
char baseName[10];
public:
base( )
strcpy(baseName,"Base");
virtual char *myName( )
return baseName;
char *className( )
Return baseName;
;
class Derived: public base
private:
char derivedName[10];
public:
Derived( )
strcpy(derivedName,"Derived" );
char *myName( )
return derivedName;
char *className( )
return derivedName;
;
void showPtr(base &p)
cout<<p.myName( )<<" "<<p.className( );
int main( )
base bb;
Derived dd;
showPtr(dd);
return 0;
运行后的输出结果为
A. Derived Base
B. Base Base
C. Derived Derived
D. Base Derived
[单项选择]有以下程序 #include <iostream> #include <string> using namespace std; class base { private: char baseName[10]; public: base ( ) { strcpy(baseName,"Base"); } virtual char *myName( ) { return baseName; } char *className( ) { return baseName; } }; class Derived : public base { private: char derivedName[10]; public: Derived( ) { strcpy(derivedName,"Derived"); } char *myName( ) { return derivedName; } char *className( ) { return derivedName; } }; void showPtr(base &p) { cout<<p.myName ( ) <<" "<<p.className ( ); } int main ( ) { base bb; Derived dd; showPtr(dd); return 0; } 运行后的输出结果为
A. Derived Base
B. Base Base
C. Derived Derived
D. Base Derived
[单项选择]有以下程序 #include<iostream> #include<string> using namespace std; class base { private: charbaseName[10]; public: base( ) { strcpy(baseName,"Base"); } virtual char*myName( ) return baseName; } char *className( ) { return baseName; } }; class Derived: public base { private: char derivedName[10]; public: Derived( ) { strcpy(derivedName,"Derived"); } char *myName( ) { return derivedName; } char *className( ) { return derivedName; } }; void showPtr(base &p) { cout<<p.myName0<<" "<<p.className( ); } int main( ) { base bb; Derived dd; showPtr(dD) ; retum 0; } 动行后的输出结果为
A. Derived Base
B. Base Base
C. Derived Derived
D. Base Derived
[单项选择]有以下程序:
#include 〈iostream〉
#include 〈string〉
using namespace std;
class visited
private:
int number;
char *name;
public:
static int glob;
void set mes(char *
[填空题]有以下程序:
#include <iostream>
#include <fstream>
using namespace std;
int main( )
fstream file;
file.open("abc.txt", ios_base::in);
if (! file )
cout<<"Can not open abc.txt"<<end1;
abort( );
char ch;
int i = 0;
while ( ! file.eof( ) )
file.get(ch);
i++;
cout<<"Characters : "<<i<<end1;
file.close( );
return 0;
程序实现的功能是 【15】 。
[填空题]#include<iostream>
#include<string>
using namespace std;
class MyClass
public:
MyClass(int i=0)member=i;
void SetMember(const string m)member="big"+m;m=member;
string GetMember( )return member;
void print( )consttout<<"Stu:"<<member<<endl;
private:
string member;
;
void main( )
MyClass obj1,*obj2;
string i="wang lin";
obj2=&obj1;
ohj2->SetMember(i);
obj1.print( );