blocks|key|2943506|text|注意，并不是所有这些方法都会返回相同的值。在某些情况下，它们可以返回相同的值，但是要小心，它们的目的是不同的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2943507|Application.StartupPath|code-block|syntax|javascript|2943508|返回StartupPath参数(可以在运行应用程序时设置)|offset|length|style|CODE|2943509|System.IO.Directory.GetCurrentDirectory()|2943510|返回当前目录，该目录可能是应用程序所在的文件夹，也可能不是该文件夹。Environment.CurrentDirectory也是如此。如果在DLL文件中使用此方法，它将返回进程运行位置的路径(在ASP.NET中尤其如此)。|2943511|entityMap^0|0|0|2|B|0|0|Y|S|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

Note that not all of these methods will return the same value. In some cases, they can return the same value, but be careful, their purposes are different:

<pre><code>Application.StartupPath
</code></pre>

returns the <code>StartupPath</code> parameter (can be set when run the application)

<pre><code>System.IO.Directory.GetCurrentDirectory()
</code></pre>

returns the current directory, which may or may not be the folder where the application is located. The same goes for <code>Environment.CurrentDirectory</code>. In case you are using this in a DLL file, it will return the path of where the process is running (this is especially true in ASP.NET).

blocks|key|2585265|text|对于访问位置相对于应用程序安装目录的文件，AppDomain.CurrentDomain.BaseDirectory可能是最有用的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2585266|在ASP.NET应用程序中，这将是应用程序根目录，而不是bin子文件夹--这可能是您通常想要的。在客户端应用程序中，它将是包含主可执行文件的目录。|2585267|在VSTO+2005应用程序中，它将是包含应用程序的VSTO托管程序集的目录，而不是Excel可执行文件的路径。|2585268|其他目录可能会根据您的环境返回不同的目录-例如，请参见@Vimvq1987+1987的答案。|2585269|http://.是找到文件的地方，可以是以CodeBase开头的URL在这种情况下，Location可能是程序集下载缓存。不能保证为CodeBase中的程序集设置GAC。|2585270|如今，更新+(.NET+Core、.NET+Standard+1.3%2B或.NET+Framework4.6%2B)最好使用AppContext.BaseDirectory而不是AppDomain.CurrentDomain.BaseDirectory。两者都是等价物，但不再支持多个AppDomains。|BOLD|2585271|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Global_Assembly_Cache|1|https://learn.microsoft.com/en-us/dotnet/core/porting/net-framework-tech-unavailable^0|L|11|0|0|0|0|L|8|16|8|29|3|0|0|3|2|1N|O|2E|11|3P|G|1|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|13|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|14|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|15|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|N|3|O|5|6|7|1E|8|@$9|1F|A|1G|B|P]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@$9|1L|A|1M|1|1N]]|E|$]]|$1|Q|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]|Y|$5|T|U|V|E|$W|Z]]]]

<code>AppDomain.CurrentDomain.BaseDirectory</code> is probably the most useful for accessing files whose location is relative to the application install directory.
In an ASP.NET application, this will be the application root directory, not the bin subfolder - which is probably what you usually want. In a client application, it will be the directory containing the main executable.
In a VSTO 2005 application, it will be the directory containing the VSTO managed assemblies for your application, not, say, the path to the Excel executable.
The others may return different directories depending on your environment - for example see @Vimvq1987's answer.
<code>CodeBase</code> is the place where a file was found and can be a URL beginning with http://. In which case <code>Location</code> will probably be the assembly download cache. CodeBase is not guaranteed to be set for assemblies in the <a href="http://en.wikipedia.org/wiki/Global_Assembly_Cache" rel="noreferrer">GAC</a>.
UPDATE
These days (.NET Core, .NET Standard 1.3+ or .NET Framework 4.6+) it's better to use <code>AppContext.BaseDirectory</code> rather than <code>AppDomain.CurrentDomain.BaseDirectory</code>. Both are equivalent, but <a href="https://learn.microsoft.com/en-us/dotnet/core/porting/net-framework-tech-unavailable" rel="noreferrer">multiple AppDomains are no longer supported</a>.

blocks|key|1388141|text|对于web应用程序，要获取当前的web应用程序根目录，通常按网页调用当前传入的请求：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1388142|HttpContext.Current.Server.MapPath();

System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath;|code-block|syntax|javascript|1388143|以上代码描述|offset|length|1388144|entityMap|0|LINK|mutability|MUTABLE|url|http://iisfault.blogspot.com/2015/06/application-current-folder-in-aspnet-c.html^0|0|0|0|6|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

For a web application, to get the current web application root directory, generally call by web page for the current incoming request:

<pre><code>HttpContext.Current.Server.MapPath();

System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath;
</code></pre>

<a href="http://iisfault.blogspot.com/2015/06/application-current-folder-in-aspnet-c.html" rel="noreferrer">Above code description</a>

blocks|key|2943643|text|Application.StartupPath和7.+System.IO.Path.GetDirectoryName(Application.ExecutablePath)+-只为Windows窗体应用程序工作|type|ordered-list-item|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2943644|System.IO.Path.GetDirectoryName(+System.Reflection.Assembly.GetExecutingAssembly().Location)
将给您提供类似于："C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\Temporary+ASP.NET+Files\\legal-services\\e84f415e\\96c98009\\assembly\\dl3\\42aaba80\\bcf9fd83_4b63d101"的内容，这是您正在运行的页面所在的位置。|2943645|web应用程序的AppDomain.CurrentDomain.BaseDirectory可能很有用，并将返回类似于"C:\\hg\\Services\\Services\\Services.Website\\"的内容，这是一个基本目录，非常有用。|2943646|System.IO.Directory.GetCurrentDirectory()和5.+Environment.CurrentDirectory|2943647|将为您提供进程从何处触发的位置-因此对于运行在调试模式下的web应用程序，您可以从Visual获得类似于"C:\\Program+Files+(x86)\\IIS+Express"的信息。|unstyled|2943648|System.IO.Path.GetDirectoryName(+System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)|2943649|将获得运行代码的.dll的位置，而web应用程序的位置可能是"file:\\C:\\hg\\Services\\Services\\Services.Website\\bin"。|2943650|现在，例如，控制台应用程序点2-6将是.exe文件所在的目录。|2943651|希望这能帮你节省点时间。|2943652|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/system.windows.forms.application.startuppath(v=vs.110).aspx^0|0|N|R|1N|2I|D|0|0|0|2K|2U|4C|0|8|11|1M|1C|0|0|15|19|S|0|1G|12|0|0|2U|0|8|4|U|1M|0|J|4|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]]|D|@$9|19|A|1A|1|1B]]|E|$]]|$1|F|3|G|5|6|7|1C|8|@$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1H|8|@$9|1I|A|1J|B|C]|$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1M|8|@$9|1N|A|1O|B|C]|$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|1R|8|@$9|1S|A|1T|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1U|8|@$9|1V|A|1W|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|N|7|1X|8|@$9|1Y|A|1Z|B|C]|$9|20|A|21|B|C]]|D|@]|E|$]]|$1|S|3|T|5|N|7|22|8|@$9|23|A|24|B|C]]|D|@]|E|$]]|$1|U|3|V|5|N|7|25|8|@]|D|@]|E|$]]|$1|W|3|-4|5|N|7|26|8|@]|D|@]|E|$]]]|X|$Y|$5|Z|10|11|E|$12|13]]]]

<ol>
<li><code>Application.StartupPath</code>and 7. <code>System.IO.Path.GetDirectoryName(Application.ExecutablePath)</code> - Is only going to work for <a href="https://msdn.microsoft.com/en-us/library/system.windows.forms.application.startuppath(v=vs.110).aspx" rel="noreferrer">Windows Forms application</a></li>
<li><code>System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().Location)</code>

Is going to give you something like: <code>"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\Temporary ASP.NET Files\\legal-services\\e84f415e\\96c98009\\assembly\\dl3\\42aaba80\\bcf9fd83_4b63d101"</code> which is where the page that you are running is.</li>
<li><code>AppDomain.CurrentDomain.BaseDirectory</code> for web application could be useful and will return something like <code>"C:\\hg\\Services\\Services\\Services.Website\\"</code> which is base directory and is quite useful.</li>
<li><code>System.IO.Directory.GetCurrentDirectory()</code> and 5. <code>Environment.CurrentDirectory</code></li>
</ol>

will get you location of where the process got fired from - so for web app running in debug mode from Visual Studio something like <code>"C:\\Program Files (x86)\\IIS Express"</code>

<ol start="6">
<li><code>System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)</code></li>
</ol>

will get you location where <code>.dll</code> that is running the code is, for web app that could be <code>"file:\\C:\\hg\\Services\\Services\\Services.Website\\bin"</code>

Now in case of for example console app points 2-6 will be directory where <code>.exe</code> file is.

Hope this saves you some time.

blocks|key|2585374|text|我在会话中通过Windows从实际登录的用户(在任务管理器会话1而不是0中)启动了一个进程。在这个过程中，我们可以知道，哪个变量是最好的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2585375|关于上述问题的所有7起案件，结果如下：|2585376|Path1:+C:\Program+Files+(x86)\MyProgram
Path2:+C:\Program+Files+(x86)\MyProgram
Path3:+C:\Program+Files+(x86)\MyProgram\
Path4:+C:\Windows\system32
Path5:+C:\Windows\system32
Path6:+file:\C:\Program+Files+(x86)\MyProgram
Path7:+C:\Program+Files+(x86)\MyProgram|code-block|syntax|javascript|2585377|也许，当你为你的情况寻找最好的变量时，做同样的事情对你们中的一些人是有帮助的。|2585378|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I started a process from a Windows Service over the Win32 API in the session from the user which is actually logged in (in Task Manager session 1 not 0). In this was we can get to know, which variable is the best.

For all 7 cases from the question above, the following are the results:

<pre><code>Path1: C:\Program Files (x86)\MyProgram
Path2: C:\Program Files (x86)\MyProgram
Path3: C:\Program Files (x86)\MyProgram\
Path4: C:\Windows\system32
Path5: C:\Windows\system32
Path6: file:\C:\Program Files (x86)\MyProgram
Path7: C:\Program Files (x86)\MyProgram
</code></pre>

Perhaps it's helpful for some of you, doing the same stuff, when you search the best variable for your case.

blocks|key|1388403|text|我已经成功地使用了这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1388404|System.IO.Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName)|code-block|syntax|javascript|1388405|它甚至可以在衬垫。内部工作。|offset|length|1388406|entityMap|0|LINK|mutability|MUTABLE|url|http://www.linqpad.net/^0|0|0|6|3|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

I have used this one successfully

<pre><code>System.IO.Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName)
</code></pre>

It works even inside <a href="http://www.linqpad.net/" rel="nofollow noreferrer">linqpad.</a>

blocks|key|2943766|text|这一次System.IO.Path.GetDirectory(Application.ExecutablePath)改为System.IO.Path.GetDirectoryName(Application.ExecutablePath)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2943767|entityMap^0|3|1J|1O|1N|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|$]]

this one <code>System.IO.Path.GetDirectory(Application.ExecutablePath)</code> changed to <code>System.IO.Path.GetDirectoryName(Application.ExecutablePath)</code>

blocks|key|2943825|text|根据我的经验，最好的方法是将这些因素结合起来。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2943826|System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase将为您提供bin文件夹|ordered-list-item|offset|length|style|CODE|2943827|Directory.GetCurrentDirectory()在.Net核心上工作得很好，但.Net不行，它将给出项目的根目录。|2943828|System.AppContext.BaseDirectory和AppDomain.CurrentDomain.BaseDirectory在.Net中工作得很好，但在.Net核心中工作得很好，并且会给出项目的根目录。|2943829|在应该是target.Net和.Net核心的类库中，我检查哪个框架承载了库，并选择了一个或另一个。|2943830|entityMap^0|0|0|1W|0|0|V|0|0|V|W|11|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@$E|S|F|T|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|U|8|@$E|V|F|W|G|H]]|9|@]|A|$]]|$1|K|3|L|5|D|7|X|8|@$E|Y|F|Z|G|H]|$E|10|F|11|G|H]]|9|@]|A|$]]|$1|M|3|N|5|6|7|12|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|P|$]]

In my experience, the best way is a combination of these.

<ol>
<li><code>System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase</code>
Will give you the bin folder</li>
<li><code>Directory.GetCurrentDirectory()</code>
Works fine on .Net Core but not .Net and will give you the root directory of the project</li>
<li><code>System.AppContext.BaseDirectory</code> and <code>AppDomain.CurrentDomain.BaseDirectory</code>
Works fine in .Net but not .Net core and will give you the root directory of the project</li>
</ol>

In a class library that is supposed to target.Net and .Net core I check which framework is hosting the library and pick one or the other.

blocks|key|2943859|text|如果您知道如何获取根目录：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2943860|string+rootPath+=+Path.GetPathRoot(Application.StartupPath)|code-block|syntax|javascript|2943861|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|$]]

If you know to get the root directory:

<pre><code>string rootPath = Path.GetPathRoot(Application.StartupPath)
</code></pre>

blocks|key|2585598|text|根目录：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2585599|DriveInfo+cDrive+=+new+DriveInfo(System.Environment.CurrentDirectory);
var+driverPath+=+cDrive.RootDirectory;|code-block|syntax|javascript|2585600|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|$]]

Root directory:

<pre><code>DriveInfo cDrive = new DriveInfo(System.Environment.CurrentDirectory);
var driverPath = cDrive.RootDirectory;
</code></pre>

I see that there are some ways to get the application folder path:

<ol>
<li><code>Application.StartupPath</code></li>
<li><code>System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().Location)</code></li>
<li><code>AppDomain.CurrentDomain.BaseDirectory</code></li>
<li><code>System.IO.Directory.GetCurrentDirectory()</code></li>
<li><code>Environment.CurrentDirectory</code></li>
<li><code>System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)</code></li>
<li><code>System.IO.Path.GetDirectory(Application.ExecutablePath)</code></li>
</ol>

What is the best way depending on the situation?

Best way to get application folder path

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。

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我看到了一些获取应用程序文件夹路径的方法：Application.StartupPathSystem.IO.Path.GetDirectoryName( System.Reflection.Assembly.GetExecutingAssembly().Location)AppDomain.CurrentDomain....

问获取应用程序文件夹路径的最佳方法
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