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);

试试下面这行简单的代码:

 string exePath = Path.GetDirectoryName( Application.ExecutablePath);

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");

您可以使用下面的代码来获取当前应用程序目录。

AppDomain.CurrentDomain.BaseDirectory

在。net6中，我的WPF应用程序(<TargetFramework>net6.0-windows</TargetFramework>)返回Assembly.GetEntryAssembly()的.dll文件路径!位置，而不是。exe文件。他们引入了System.Environment.ProcessPath:

var path = Environment.ProcessPath; // Note it may be null

返回启动当前执行进程的可执行文件的路径。当路径不可用时返回null。

请参见这里和这里的讨论。

在VB.net

My.Application.Info.DirectoryPath

工作为我(应用类型:类库)。不太懂c#… 返回文件名为字符串的路径