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发布时间:2024-03-28 21:28:32

[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. 5
B. 3
C. 2
D. 0

更多"下面程序的运行结果是( )。   #include<iostre"的相关试题:

[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. 123
B. 3120
C. 312
D. 3012

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