一道c++题目求解

#include<iostream>
#include<string>
using namespace std;
class Publication
{
private:
string title;
string name;
float price;
string date;
public:
Publication(){cout<<"Publication::Publication() called.\n";}
void inputData(string t,string n,float p,string d)
{
title=t;name=n;price=p;date=d;
}
void display()
{
cout<<title<<" "<<name<<" "<<price<<" "<<date<<endl;
}
~Publication(){cout<<"Publication::~Publication() called.\n";}

};
class Book:public Publication
{
private:
int page;
public:
Book(){cout<<"Book::Book() called.\n";}
void inputData(int p1)
{
page=p1;
}

void display()
{
cout<<page<<endl;
}

~Book(){cout<<"Book::~Book() called.\n";}

};
class Tape:public Publication
{
private:
string playtime;
public:
Tape(){cout<<"Tape::Tape() called.\n";}
void inputData(string p2)
{
playtime=p2;
}
void display()
{cout<<playtime<<endl;}

~Tape(){cout<<"Tape::~Tape() called.\n";}

};
void main()
{
string t="出版物标题";
string n="出版物名称";
float  p=1000;
string d="日期";
int  p1=100;
string p2="播放时间";
Publication();
Book();
Tape();
Publication A;
A.inputData();
A.display();
Book B;
B.inputData();
B.display();
Tape T;
T.inputData();
T.display();

} 求解 --------------------编程问答-------------------- 问题是什么？ --------------------编程问答-------------------- 问题呢。。。。。 --------------------编程问答-------------------- 貌似是定义的类没有参数 --------------------编程问答--------------------

// CppApp1.cpp : Defines the entry point for the console application.

//



#include "stdafx.h"



#include<iostream>

#include<string>

using namespace std;

class Publication

{

private:

	string title;

	string name;

	float price;

	string date;

public:

	Publication(){cout<<"Publication::Publication() called.\n";}

	void inputData(string t,string n,float p,string d)

	{

		title=t;name=n;price=p;date=d;

	}

	void display()

	{

		cout<<title<<" "<<name<<" "<<price<<" "<<date<<endl;

	}

	~Publication(){cout<<"Publication::~Publication() called.\n";}



};

class Book:public Publication

{

private:

	int page;

public:

	Book(){cout<<"Book::Book() called.\n";}

	void inputData(int p1)

	{

		page=p1;

	}



	void display()

	{

		cout<<page<<endl;

	}



	~Book(){cout<<"Book::~Book() called.\n";}





};

class Tape:public Publication

{

private:

	string playtime;

public:

	Tape(){cout<<"Tape::Tape() called.\n";}

	void inputData(string p2)

	{

		playtime=p2;

	}

	void display()

	{cout<<playtime<<endl;}



	~Tape(){cout<<"Tape::~Tape() called.\n";}



};

int _tmain(int argc, _TCHAR* argv[])

{

	string t="出版物标题";

	string n="出版物名称";

	float  p=1000;

	string d="日期";

	int  p1=100;

	string p2="播放时间";

	Publication();

	Book();

	Tape();

	Publication A;

	A.inputData(t, n, p, d);

	A.display();

	Book B;  

	B.inputData(p1);  

	B.display();  

	Tape T;  

	T.inputData(p2);  

	T.display();

}

补充：.NET技术 ,  VC.NET