将相对路径转换为绝对路径 [英] Convert Relative Path to Absolute Path

问题描述

我正在尝试使用链接标签在 Windows 窗体中打开 Help.txt 文件.但是无法从绝对路径转换为相对路径.

I am trying to open a Help.txt file in windows Forms using a linkLabel. However unable to convert from absolute to relative path.

首先，我尝试获取exe文件的绝对路径.这是成功的.其次，只获取exe文件的目录.这是成功的.第三，我试图将目录与 Help.txt 文件的相对路径结合起来.这是不成功的.

First, I try to get the absolute path of the exe file. Which is successful. Second, get only directory of the exe file. Which is successful. Third, I am trying to combine the directory with the relative path of the Help.txt file. Which is unsuccessful.

Exe 文件位于 -> \Project\bin\Debug 文件夹中，但是 Help.txt 文件位于 \Project\Help 文件夹中.这是我的代码:-

Exe file lives in -> \Project\bin\Debug folder, However the Help.txt file lives in \Project\Help folder. This is my code:-

 string exeFile = (new System.Uri(Assembly.GetEntryAssembly().CodeBase)).AbsolutePath;
 string Dir = Uri.UnescapeDataString(Path.GetDirectoryName(exeFile));
 string path = Path.Combine(Dir, @"..\..\Help\Help.txt");
 System.Diagnostics.Process.Start(path);

我的路径的结果是 -> \Project\bin\Debug....\Help\Help.txt

The result of my path is -> \Project\bin\Debug....\Help\Help.txt

推荐答案

需要使用 Path.GetFullPath() 来考虑上层目录../../"，见下:

You need to use Path.GetFullPath() to have the upper directory "../../" taken into account, see below :

string exeFile = new System.Uri(Assembly.GetEntryAssembly().CodeBase).AbsolutePath;
string Dir = Path.GetDirectoryName(exeFile);
string path = Path.GetFullPath(Path.Combine(Dir, @"..\..\Help\Help.txt"));
System.Diagnostics.Process.Start(path);

根据 GetFullPath :返回指定路径字符串的绝对路径.而 Path.Combine 将字符串组合成路径.

Per the MSDN of GetFullPath : Returns the absolute path for the specified path string. Whereas Path.Combine Combines strings into a path.

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