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DirectoryInfo.Parent 屬性

定義

取得指定子目錄的父代 (Parent) 目錄。

public:
 property System::IO::DirectoryInfo ^ Parent { System::IO::DirectoryInfo ^ get(); };
public System.IO.DirectoryInfo Parent { get; }
public System.IO.DirectoryInfo? Parent { get; }
member this.Parent : System.IO.DirectoryInfo
Public ReadOnly Property Parent As DirectoryInfo

屬性值

父目錄,如果路徑為 null, null 或檔案路徑表示根目錄 (,例如 \C:\\\server\share) 。

例外狀況

呼叫端沒有必要的權限。

範例

下列範例是指指定目錄的父目錄。

using namespace System;
using namespace System::IO;
int main()
{
   
   // Make a reference to a directory.
   DirectoryInfo^ di = gcnew DirectoryInfo( "TempDir" );
   
   // Create the directory only if it does not already exist.
   if (  !di->Exists )
      di->Create();

   
   // Create a subdirectory in the directory just created.
   DirectoryInfo^ dis = di->CreateSubdirectory( "SubDir" );
   
   // Get a reference to the parent directory of the subdirectory you just made.
   DirectoryInfo^ parentDir = dis->Parent;
   Console::WriteLine( "The parent directory of '{0}' is '{1}'", dis->Name, parentDir->Name );
   
   // Delete the parent directory.
   di->Delete( true );
}
using System;
using System.IO;

public class MoveToTest
{
    public static void Main()
    {

        // Make a reference to a directory.
        DirectoryInfo di = new DirectoryInfo("TempDir");

        // Create the directory only if it does not already exist.
        if (di.Exists == false)
            di.Create();

        // Create a subdirectory in the directory just created.
        DirectoryInfo dis = di.CreateSubdirectory("SubDir");

        // Get a reference to the parent directory of the subdirectory you just made.
        DirectoryInfo parentDir = dis.Parent;
        Console.WriteLine("The parent directory of '{0}' is '{1}'", dis.Name, parentDir.Name);

        // Delete the parent directory.
        di.Delete(true);
    }
}
open System.IO

// Make a reference to a directory.
let di = DirectoryInfo "TempDir"

// Create the directory only if it does not already exist.
if not di.Exists then
    di.Create()

// Create a subdirectory in the directory just created.
let dis = di.CreateSubdirectory "SubDir"

// Get a reference to the parent directory of the subdirectory you just made.
let parentDir = dis.Parent
printfn $"The parent directory of '{dis.Name}' is '{parentDir.Name}'"

// Delete the parent directory.
di.Delete true
Imports System.IO

Public Class MoveToTest

    Public Shared Sub Main()
        ' Make a reference to a directory.
        Dim di As New DirectoryInfo("TempDir")
        ' Create the directory only if it does not already exist.
        If di.Exists = False Then
            di.Create()
        End If

        ' Create a subdirectory in the directory just created.
        Dim dis As DirectoryInfo = di.CreateSubdirectory("SubDir")

        ' Get a reference to the parent directory of the subdirectory you just made.
        Dim parentDir As DirectoryInfo = dis.Parent
        Console.WriteLine("The parent directory of '{0}' is '{1}'", dis.Name, parentDir.Name)

        ' Delete the parent directory.
        di.Delete(True)
    End Sub
End Class

備註

重要

在 .NET Framework 中,Parent傳回相對路徑。 在 .NET Core 中, Parent 傳回完整路徑。

若要確保版本之間的一致行為,並讓您的意圖明確,請在 所Parent傳回的DirectoryInfo實例上擷取下列其中一個屬性的值。

  • Name,傳回目錄 (的簡單名稱,例如 bin) 。
  • FullName,傳回目錄的絕對路徑。

如需一般 I/O 工作的清單,請參閱 一般 I/O 工作

適用於

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