在C ++中使用Visual Studio读取文本文件时遇到问题 [英] Trouble Reading a Text File with Visual Studio in C++

问题描述

我无法让Visual Studio读取文本文件.下面是我的代码.该文件可以在Unix环境中完美打开，但是将其复制并粘贴到Visual Studio后将无法正常工作.我正在使用fstream打开文件.为什么不读取文件?

I can not get Visual Studio to read in a text file. Below is the code I have. The file opens perfectly in a Unix Environment, but it does not work when copied and pasted into Visual Studio. I am using fstream to open the file. Why the file is not being read?

当我运行程序时，它会生成，但没有输出.我有一条输出语句 cout<<"inf \ n" .因此，甚至没有达到循环，这就是为什么我认为没有读取文件的原因.同样，当我在Unix环境中运行相同的代码时，输​​出语句的确会显示，并显示文件中的值(通过tree.insert()，tree.remove()).

When I run the program, it builds but I get no output. I have an output statement cout << "inf\n". So the loop is not even being reached, which is why I believe the file is not being read. Again, when I run the same code in a Unix environment the output statement does display and the values from the file are displayed ( via tree.insert(), tree.remove() ).

我在此链接中尝试了该解决方案.如它的建议，我将工作目录更改为$(ProjectDir)\ Debug和$(ProjectDir)\ Release.另外，我将文本文件从资源"文件夹移动到了解决方案资源管理器中的源"文件夹.但是，该文件仍未被读取.

I tried the solution in this link. As it suggested, I changed my working directory to $(ProjectDir)\Debug and $(ProjectDir)\Release. Also, I moved my text file from the Resources folder to my Source Folder in the Solution Explorer. However, the file still was not being read.

我还更新了代码，以包含 cerr<<错误:"<<strerror(errno); 直接在fstream inf("BTREE5_1.txt")之后.使用此行代码，我得到的输出是

I also updated my code to include cerr << "Error: " << strerror(errno); directly after fstream inf ("BTREE5_1.txt"). With this line of code the output I get is

错误:没有这样的文件或目录

有人可以解释为什么吗?如上所述，我的文本文件与我的代码位于同一文件夹中.

Can someone please explain why? My text files are in the same folder as my code as explained above.

#define _CRT_SECURE_NO_WARNINGS
#include <fstream>
#include <iostream>
#include <cstdlib>  
#include <cstdio>
#include "BTree.h"

using namespace std;

int main()
{
bool first = true;

BTree tree(6, 2);
int value;
char s[80], command;

ifstream inf("BTree5_1.txt");
cerr << "Error: " << strerror(errno);


inf.getline(s, 80);

while (inf >> command >> value)
{
    cout << "inf\n";
    if (command == 'i')
        tree.insert(value);
    else
    {
        if (first)
        {
            cout << "After all insertions.\n";
            tree.print();
            first = false;
        } // if first

        cout << "Deleting " << value << ". \n";
        tree.remove(value);
        tree.print();
        // fgets(s, 80, stdin);
    } // else deletion
} // while
system("PAUSE");
return 0;
}  // main

推荐答案

问题是我从Unix环境复制并粘贴了文本文件.为了解决这个问题，我只是将文本文件从C盘放入目录中.

The problem was that I copied and pasted my text files from the Unix Environment. To fix this I just placed the text files into my Directory from my C Drive.

ie>)C:\ Users \ s.proctor \ Documents \ Visual Studio 2015 \ Projects \ ecs60 \ p2 \ p2 \ p2

ie>) C:\Users\s.proctor\Documents\Visual Studio 2015\Projects\ecs60\p2\p2\p2

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