您有两个选项来查找应用程序的目录，具体选择哪个取决于您的目的。

// to get the location the assembly is executing from
//(not necessarily where the it normally resides on disk)
// in the case of the using shadow copies, for instance in NUnit tests, 
// this will be in a temp directory.
string path = System.Reflection.Assembly.GetExecutingAssembly().Location;

//To get the location the assembly normally resides on disk or the install directory
string path = System.Reflection.Assembly.GetExecutingAssembly().CodeBase;

//once you have the path you get the directory with:
var directory = System.IO.Path.GetDirectoryName(path);

对于控制台应用程序，您可以尝试这样做:

System.IO.Directory.GetCurrentDirectory();

输出(在我的本地机器上):

c:\users\xxxxxxx\documents\visual studio 2012\Projects\ImageHandler\GetDir\bin\Debug

或者你可以试试(最后有一个额外的反斜杠):

AppDomain.CurrentDomain.BaseDirectory

输出:

c:\users\xxxxxxx\documents\visual studio 2012\Projects\ImageHandler\GetDir\bin\Debug\

对于。net 6，有Environment.ProcessPath。

见https://learn.microsoft.com/en - us/dotnet/api/system.environment.processpath?view=net 6.0

为什么不是p/invoke方法呢?

    using System;
    using System.IO;
    using System.Runtime.InteropServices;
    using System.Text;
    public class AppInfo
    {
            [DllImport("kernel32.dll", CharSet = CharSet.Auto, ExactSpelling = false)]
            private static extern int GetModuleFileName(HandleRef hModule, StringBuilder buffer, int length);
            private static HandleRef NullHandleRef = new HandleRef(null, IntPtr.Zero);
            public static string StartupPath
            {
                get
                {
                    StringBuilder stringBuilder = new StringBuilder(260);
                    GetModuleFileName(NullHandleRef, stringBuilder, stringBuilder.Capacity);
                    return Path.GetDirectoryName(stringBuilder.ToString());
                }
            }
    }

您可以像使用应用程序一样使用它。StartupPath:

    Console.WriteLine("The path to this executable is: " + AppInfo.StartupPath + "\\" + System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".exe");

上面的答案是我需要的90%，但返回了一个Uri，而不是常规路径。

正如在MSDN论坛的帖子中解释的那样，如何将URI路径转换为正常的文件路径?，我使用了以下方法:

// Get normal filepath of this assembly's permanent directory
var path = new Uri(
    System.IO.Path.GetDirectoryName(
        System.Reflection.Assembly.GetExecutingAssembly().CodeBase)
    ).LocalPath;

我将此用于console + net 6

Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location)