blocks|key|1384680|text|在组合路径http://msdn.microsoft.com/en-us/library/system.io.path.getfullpath.aspx上调用Path.GetFullPath|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1384681|>+Path.GetFullPath(Path.Combine(@"C:\blah\",@"..\bling"))
C:\bling|code-block|syntax|javascript|1384682|(我同意Path.Combine应该自己做这件事)|1384683|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.io.path.getfullpath.aspx^0|5|1Z|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Call Path.GetFullPath on the combined path <a href="http://msdn.microsoft.com/en-us/library/system.io.path.getfullpath.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/library/system.io.path.getfullpath.aspx</a>

<pre><code>&gt; Path.GetFullPath(Path.Combine(@"C:\blah\",@"..\bling"))
C:\bling
</code></pre>

(I agree Path.Combine ought to do this by itself)

blocks|key|1599638|text|对于windows通用应用程序，Path.GetFullPath()不可用，您可以改用System.Uri类：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1599639|+Uri+uri+=+new+Uri(Path.Combine(@"C:\blah\",@"..\bling"));
+Console.WriteLine(uri.LocalPath);|code-block|syntax|javascript|1599640|entityMap^0|G|I|17|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

For windows universal apps <code>Path.GetFullPath()</code> is not available, you can use the <code>System.Uri</code> class instead:

<pre><code> Uri uri = new Uri(Path.Combine(@"C:\blah\",@"..\bling"));
 Console.WriteLine(uri.LocalPath);
</code></pre>

blocks|key|1384734|text|这将为您提供所需的内容(path不需要存在即可运行)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1384735|DirectoryInfo+di+=+new+DirectoryInfo(@"C:\blah\..\bling");
string+cleanPath+=+di.FullName;|code-block|syntax|javascript|1384736|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This will give you exactly what you need (path does NOT have to exist for this to work)

<pre><code>DirectoryInfo di = new DirectoryInfo(@"C:\blah\..\bling");
string cleanPath = di.FullName;
</code></pre>

blocks|key|1384890|text|Path.GetFullPath()不适用于相对路径。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1384891|这是一个适用于相对%2B绝对路径的解决方案。它在Linux+%2B+Windows上都能工作，并保持文本开头的..+(静止状态下，它们将被标准化)。该解决方案仍然依赖于Path.GetFullPath通过一个小的变通方法来完成修复。|1384892|它是一个扩展方法，所以可以像使用text.Canonicalize()一样使用它|1384893|///+<summary>
///+++++Fixes+"../.."+etc
///+</summary>
public+static+string+Canonicalize(this+string+path)
{
++++if+(path.IsAbsolutePath())
++++++++return+Path.GetFullPath(path);
++++var+fakeRoot+=+Environment.CurrentDirectory;+//+Gives+us+a+cross+platform+full+path
++++var+combined+=+Path.Combine(fakeRoot,+path);
++++combined+=+Path.GetFullPath(combined);
++++return+combined.RelativeTo(fakeRoot);
}
private+static+bool+IsAbsolutePath(this+string+path)
{
++++if+(path+==+null)+throw+new+ArgumentNullException(nameof(path));
++++return
++++++++Path.IsPathRooted(path)
++++++++&&+!Path.GetPathRoot(path).Equals(Path.DirectorySeparatorChar.ToString(),+StringComparison.Ordinal)
++++++++&&+!Path.GetPathRoot(path).Equals(Path.AltDirectorySeparatorChar.ToString(),+StringComparison.Ordinal);
}
private+static+string+RelativeTo(this+string+filespec,+string+folder)
{
++++var+pathUri+=+new+Uri(filespec);
++++//+Folders+must+end+in+a+slash
++++if+(!folder.EndsWith(Path.DirectorySeparatorChar.ToString()))+folder+%2B=+Path.DirectorySeparatorChar;
++++var+folderUri+=+new+Uri(folder);
++++return+Uri.UnescapeDataString(folderUri.MakeRelativeUri(pathUri).ToString()
++++++++.Replace('/',+Path.DirectorySeparatorChar));
}|code-block|syntax|javascript|1384894|entityMap^0|0|I|0|1F|2|28|G|0|G|J|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|J|3|K|5|L|7|11|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|P|$]]

<code>Path.GetFullPath()</code> does not work with relative paths.

Here's the solution that works with both relative + absolute paths. It works on both Linux + Windows and it keeps the <code>..</code> as expected in the beginning of the text (at rest they will be normalized). The solution still relies on <code>Path.GetFullPath</code> to do the fix with a small workaround.

It's an extension method so use it like <code>text.Canonicalize()</code>

<pre><code>/// &lt;summary&gt;
/// Fixes "../.." etc
/// &lt;/summary&gt;
public static string Canonicalize(this string path)
{
 if (path.IsAbsolutePath())
 return Path.GetFullPath(path);
 var fakeRoot = Environment.CurrentDirectory; // Gives us a cross platform full path
 var combined = Path.Combine(fakeRoot, path);
 combined = Path.GetFullPath(combined);
 return combined.RelativeTo(fakeRoot);
}
private static bool IsAbsolutePath(this string path)
{
 if (path == null) throw new ArgumentNullException(nameof(path));
 return
 Path.IsPathRooted(path)
 &amp;&amp; !Path.GetPathRoot(path).Equals(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal)
 &amp;&amp; !Path.GetPathRoot(path).Equals(Path.AltDirectorySeparatorChar.ToString(), StringComparison.Ordinal);
}
private static string RelativeTo(this string filespec, string folder)
{
 var pathUri = new Uri(filespec);
 // Folders must end in a slash
 if (!folder.EndsWith(Path.DirectorySeparatorChar.ToString())) folder += Path.DirectorySeparatorChar;
 var folderUri = new Uri(folder);
 return Uri.UnescapeDataString(folderUri.MakeRelativeUri(pathUri).ToString()
 .Replace('/', Path.DirectorySeparatorChar));
}
</code></pre>

blocks|key|1384835|text|注意使用反斜杠，不要忘记它们(也不要使用两次：)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1384836|string+relativePath+=+"..\\bling.txt";
string+baseDirectory+=+"C:\\blah\\";
//OR:
//string+relativePath+=+"\\..\\bling.txt";
//string+baseDirectory+=+"C:\\blah";
//THEN
string+absolutePath+=+Path.GetFullPath(baseDirectory+%2B+relativePath);|code-block|syntax|javascript|1384837|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Be careful with Backslashes, don't forget them (neither use twice:)

<pre><code>string relativePath = "..\\bling.txt";
string baseDirectory = "C:\\blah\\";
//OR:
//string relativePath = "\\..\\bling.txt";
//string baseDirectory = "C:\\blah";
//THEN
string absolutePath = Path.GetFullPath(baseDirectory + relativePath);
</code></pre>

I'm trying to join a Windows path with a relative path using <a href="http://msdn.microsoft.com/en-us/library/system.io.path.combine.aspx" rel="noreferrer"><code>Path.Combine</code></a>.

However, <code>Path.Combine(@"C:\blah",@"..\bling")</code> returns <code>C:\blah\..\bling</code> instead of <code>C:\bling\</code>.

Does anyone know how to accomplish this without writing my own relative path resolver (which shouldn't be too hard)?

Path.Combine absolute with relative path strings

Windows

Linux

我正在尝试使用将Windows路径与相对路径连接起来。但是，Path.Combine(@"C:\blah",@"..\bling")返回C:\blah\..\bling而不是C:\bling\。有谁知道如何在不编写我自己的相对路径解析器的情况下做到这一点(这应该不会太难)？

问具有相对路径字符串的Path.Combine绝对路径
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回答 5

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