Environment.CurrentDirectory 屬性

定義

命名空間:

System

組件:

System.Runtime.dll

來源:

Environment.cs

取得或設定目前工作目錄的完整路徑。

public:
 static property System::String ^ CurrentDirectory { System::String ^ get(); void set(System::String ^ value); };

public static string CurrentDirectory { get; set; }

static member CurrentDirectory : string with get, set

Public Shared Property CurrentDirectory As String

屬性值

String

目錄路徑。

例外狀況

ArgumentException

嘗試設定為空字串 ("")。

ArgumentNullException

嘗試設定為 null。

IOException

發生 I/O 錯誤。

DirectoryNotFoundException

嘗試設定找不到的本機路徑。

SecurityException

呼叫端沒有適當的權限。

範例

下列範例示範如何設定 CurrentDirectory 屬性。

using namespace System;
using namespace System::IO;

void main()
{
      if (Environment::OSVersion->Platform == PlatformID::Win32NT)
      {
            // Change the directory to %WINDIR%
            Environment::CurrentDirectory = Environment::GetEnvironmentVariable( "windir" );
            DirectoryInfo^ info = gcnew DirectoryInfo( "." );

            Console::WriteLine("Directory Info:   {0}", info->FullName);
      }
      else
      {
            Console::WriteLine("This example runs on Windows only.");
      }
}
// The example displays output like the following on a .NET implementation running on Windows:
//        Directory Info:   C:\windows
// The example displays the following output on a .NET implementation on Unix-based systems:
//        This example runs on Windows only.

using System;
using System.IO;

public class Example
{
   public static void Main()
   {
      if (Environment.OSVersion.Platform == PlatformID.Win32NT)
      {
         // Change the directory to %WINDIR%
         Environment.CurrentDirectory = Environment.GetEnvironmentVariable("windir");
         DirectoryInfo info = new DirectoryInfo(".");

         Console.WriteLine("Directory Info:   " + info.FullName);
      }
      else
      {
         Console.WriteLine("This example runs on Windows only.");
      }
   }
}
// The example displays output like the following on a .NET implementation running on Windows:
//        Directory Info:   C:\windows
// The example displays the following output on a .NET implementation on Unix-based systems:
//        This example runs on Windows only.

open System
open System.IO

if Environment.OSVersion.Platform = PlatformID.Win32NT then
    // Change the directory to %WINDIR%
    Environment.CurrentDirectory <- Environment.GetEnvironmentVariable "windir"
    
    let info = DirectoryInfo "."

    printfn $"Directory Info:   {info.FullName}"
else
    printfn "This example runs on Windows only."
// The example displays output like the following on a .NET implementation running on Windows:
//        Directory Info:   C:\windows
// The example displays the following output on a .NET implementation on Unix-based systems:
//        This example runs on Windows only.

Imports System.IO

Module Example
   Public Sub Main()
        If Environment.OSVersion.Platform = PlatformID.Win32NT Then
            ' Change the directory to %WINDIR%
            Environment.CurrentDirectory = Environment.GetEnvironmentVariable("windir")
            Dim info As New DirectoryInfo(".")
            Console.WriteLine("Directory Info:   " + info.FullName)
         Else
            Console.WriteLine("This example runs on Windows only.")
         End If
   End Sub
End Module
' The example displays output like the following on a .NET implementation running on Windows:
'        Directory Info:   C:\windows
' The example displays the following output on a .NET implementation on Unix-based systems:
'        This example runs on Windows only.

備註

根據定義，如果此程式從本機或網路磁碟機機的根目錄中開始，此屬性的值就是磁片磁碟機名稱，後面接著尾端斜線 (，例如 「C：\」 ) 。 如果這個程式在子目錄中啟動，則此屬性的值是磁片磁碟機和子目錄路徑，而沒有尾端斜線 (，例如 「C：\mySubDirectory」) 。