有关编程的问题..... [英] Question about programming.....

问题描述

我已经计算出一种序列线性表结构.但是，当我今天尝试运行它时，它会生成一些链接错误.请帮帮我.

项目中有三个文件:
Main.cpp
Seque.cpp
Seque.h

内容是:

I have worked out one sequence linearlist structure. However, when I try to run it today, it generates some link errors. Please help me with it.

There are three files in the projects:
Main.cpp
Seque.cpp
Seque.h

The contents are:

In Main.cpp:

#include "stdafx.h"
#include "Seque.h"

int main(int argc, char* argv[])
{
	printf("Hello World!\n");
	int n,number,position1,insert1,position2;
	Seque<int> seque;
	cout<<"Input the number of numbers you want to enter!"<<endl;
	cin>>n;
	seque.Input(n);
	seque.Output();
	cout<<"Input the number you want to search!"<<endl;
	cin>>number;
	seque.SearchItem(number);
	cout<<"Input the position and number you want to insert!"<<endl;
	cin>>position1;
	cin>>insert1;
	seque.InsertItem(position1,insert1);
	seque.Output();
	cout<<"Input the position you want to delete!"<<endl;
	cin>>position2;
	seque.DeleteItem(position2);
	seque.Output();
	
	return 0;
}

In Seque.cpp:
// Seque.cpp: implementation of the Seque class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Seque.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
template<class t="">
Seque<t>::Seque(int sz)
{
	listsize=sz;
	lenth=-1;
	elem= new T[listsize];
	if (elem==NULL)
	{
		cerr<<"error"<<endl;
		exit(1);
	}
}

template<class t="">
void Seque<t>::SearchItem(T& x)
{
	for (int i=0;i<listsize;i++)>
	{
		if (elem[i]==x)
		{
			cout<<"The number you search is at "<<i<<"th location"<<endl;
		}
		else
			cout<<"Not Found!"<<endl;
	}
}

template<class t="">
void Seque<t>::InsertItem(int i, T& x)
{
	if (lenth==listsize-1)
	{
		cout<<"full"<<endl;
	
	}
	for (int j=lenth;j>i;j--)
	{
		elem[j+1]=elem[j];
	}
	elem[i]=x;
	lenth++;

}

template<class t="">
void Seque<t>::DeleteItem(int i)
{
	int x;
	if (i>lenth)
	{
		cout<<"Exceed!"<<endl;
	}
	x=elem[i];
	for (int j=i;j<=lenth;j++)
	{
		elem[j]=elem[j+1];
	}
	lenth--;
	cout<<"The number at where you point is "<<x<<endl;
}

template<class t="">
void Seque<t>::Input(int i)
{
	if (i>listsize)
	{
		cout<<"Error!"<<endl;
		break;
	}
	lenth=i;
	cout<<"Input the elements!"<<endl;
	for (int j=0;j<i;j++)>
	{
		cout<<"Number"<<j+1<<endl;
		cin>>elem[j];
	}
}

template<class t="">
void Seque<t>::Output()
{
	for (int i=0;i<lenth;i++)>
	{
		cout<<"Number "<<i+1<<":"<<endl;
		cout<<elem[i]<<endl;
	}
}



In Seque.h:

// Seque.h: interface for the Seque class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SEQUE_H__78600571_2F0D_49E2_B387_EA39796A31A6__INCLUDED_)
#define AFX_SEQUE_H__78600571_2F0D_49E2_B387_EA39796A31A6__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


#include <iostream.h>
#include <stdlib.h>

#define Defaultsize 100

template <class T>

class Seque  
{
private:
	T *elem;
	int lenth;
	int listsize;
protected:

public:
	Seque(int sz=Defaultsize);
	~Seque(){delete[] elem;}
	void InsertItem(int i, T& x);
	void DeleteItem(int i);
	void SearchItem(T& x);
	void Input(int i);
	void Output();
  

};

#endif // !defined(AFX_SEQUE_H__78600571_2F0D_49E2_B387_EA39796A31A6__INCLUDED_)
</t></class></t></class></t></class></t></class></t></class></t></class>

谢谢您的帮助！

Thank you for helping me!

推荐答案

在将函数定义为模板化类的成员时，有必要将其定义为模板化函数.

When defining a function as a member of a templated class, it is necessary to define it as a templated function.

template class <a_type> void a_class<a_type>::a_function(){...}

我相信您的原型是不正确的(尽管我注意到此处粘贴模板标签会导致显示问题，所以可能是复制和粘贴问题)...因此，链接程序从未找到匹配的模板...

另外，您可能需要在Seque文件中定义模板类Seque< int> ;; .

体面的教程: http://www.cprogramming.com/tutorial/templates.html [

I believe your prototypes are incorrect (although I''m noticing pasting template tags in here causes display issues, so it may have been a copy and paste problem)... hence the linker never found a matching template...

Plus you probably need to define template class Seque<int>; in the Seque file.

Decent tutorial: http://www.cprogramming.com/tutorial/templates.html[^]

您好，
您的代码中有太多问题，我建议您从头开始重新开始:(
此处 [模板线性列表错误，链接错误 [

Hi,
There are so many problems in your code that I suggest you restart from scratch :(
Your link errors are explained here[^] and in the answers to your Template linear list error, link errors[^] question.

cheers,
AR

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