blocks|key|1255478|text|您需要使用#ifdef编写特定于操作系统的代码。如果在Windows上运行，则将路径转换为大写，并进行比较。如果您是在Linux上，那么就按实际情况进行比较。每个操作系统上都有一些预定义的宏可供您使用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1255479|您可以从这里使用列表：http://sourceforge.net/p/predef/wiki/OperatingSystems/|1255480|这样，您的代码将类似于：|1255481|#ifdef+__WINDOWS__
//+do+case-insensitive+compare
#else
//+do+case-sensitive+compare+|code-block|syntax|javascript|1255482|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/p/predef/wiki/OperatingSystems/^0|5|6|0|B|1I|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@$9|10|A|11|1|12]]|E|$]]|$1|H|3|I|5|6|7|13|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|14|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

You need to write OS specific code using <code>#ifdef</code>s. If you are running on Windows, convert the paths into uppercase, and compare. If you are on Linux, then compare as it is. There are some predefined macros on each OS that you could use. 

You could use the list from here: <a href="http://sourceforge.net/p/predef/wiki/OperatingSystems/" rel="nofollow">http://sourceforge.net/p/predef/wiki/OperatingSystems/</a>

With this, your code would look something like:

<pre><code>#ifdef __WINDOWS__
// do case-insensitive compare
#else
// do case-sensitive compare 
</code></pre>

blocks|key|1255493|text|编辑|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1255494|更好地看看boost::filesystem::equivalent+:)|CODE|1255495|如果sf1+==+sf2、p1和p2解析为同一个文件系统实体，则返回true，否则为false。|1255496|entityMap|0|LINK|mutability|MUTABLE|url|http://www.boost.org/doc/libs/release/libs/filesystem/doc/reference.html#equivalent^0|0|2|0|5|T|5|T|0|0|2|A|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|H]]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|I|3|J|5|6|7|11|8|@$9|12|A|13|B|H]]|D|@]|E|$]]|$1|K|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

EDIT

Even better look at <a href="http://www.boost.org/doc/libs/release/libs/filesystem/doc/reference.html#equivalent" rel="nofollow noreferrer"><code>boost::filesystem::equivalent</code></a> :)

It returns true, if <code>sf1 == sf2</code> and p1 and p2 resolve to the same file system entity, else false.

blocks|key|1223379|text|How+do+I+get+the+correct+case+of+a+path?也问了一个类似的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1223380|Slomojo的解决方案有点麻烦，但似乎没有办法绕过它。|1223381|没有简单的方法可以做到这一点，但是您可以尝试执行一个QDir.entryList，然后对结果进行不区分大小写的搜索。这将为您提供正确的文件名。然后，您将需要获得该结果的absolutePath。
这将为路径/文件名提供保留的大小写。|blockquote|style|CODE|1223382|1223383|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/3644863/how-do-i-get-the-correct-case-of-a-path^0|0|14|0|0|0|Q|E|2C|C|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Y|8|@$A|Z|B|10|I|J]|$A|11|B|12|I|J]]|9|@]|C|$]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]]]

<a href="https://stackoverflow.com/questions/3644863/how-do-i-get-the-correct-case-of-a-path">How do I get the correct case of a path?</a> asks a similar question.

The solution by Slomojo is a bit of a hack, but there seems to be no way around it.

<blockquote>
 There isn't a simple way to do this, but you can try doing a
 <code>QDir.entryList</code>, and then do a case insensitive search on the results.
 This will provide you with the correct filename. You'll then need to
 get the <code>absolutePath</code> for that result.
 
 This should give you the preserved-case for the path/filename.
</blockquote>

blocks|key|1255546|text|如果两个路径引用同一个文件，则QFileInfo::operator==被定义为返回true，除非(A)一个是Windows8.3“短”名称，另一个是它的“长”名称，或者(B)是指向另一个文件的符号链接。这两种情况都不例外。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1255547|entityMap^0|F|L|16|4|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

<code>QFileInfo::operator==</code> is defined to return <code>true</code> if two paths refer to the same file, except when (A) one is a Windows 8.3 "short" name and the other is its "long" name or (B) when one is a symbolic link to the other. Neither exception applies here.

This is a question about how to use Qt.
I have two paths, let us say "c:\users\herbie\stuff\file1.txt" and "c:\users\HERBIE\stuff\file1.txt". 

I want to write a method will tell me if these two paths refer to the same file or not. This method should work under windows and linux. Therefore I thought that Qt classes can be used to solve this problem, but I have not found how to do it. 

Windows is not case sensitive so on windows these two refer to the same file. On linux they would refer to different files. 

Does anybody know how to do this? string comparison does not work ( because of the case-sensitivity) and Qt classes such as QFileInfo,QDir etc always return the path the way it was set to them by constructor, not the name that actually exists on the system. 

Any help is appreciated!

how to find out if two filenames refer to the same file

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋 

腾讯云代码助手

CODING DevOps

Cloud Studio

SDK中心

API中心

命令行工具

这是一个关于如何使用Qt的问题。我有两条路径，让我们说“c：\user\HERBIE\c\file1.txt”和“c：\user\HERBIE\stuff\file1.txt”。我想写一个方法来告诉我，这两个路径是否引用同一个文件。此方法应在windows和linux下工作。因此我认为Qt类可以用来解决这个问题，但是我...

问如何确定两个文件名是否引用同一个文件
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何确定两个文件名是否引用同一个文件EN