DirectoryInfo.Delete 方法

定义

命名空间:: System.IO

程序集:: mscorlib.dll, System.IO.FileSystem.dll

程序集:: netstandard.dll, System.Runtime.dll

程序集:: netstandard.dll, System.IO.FileSystem.dll

程序集:: netstandard.dll, System.IO.FileSystem.dll, System.Runtime.dll

程序集:: System.IO.FileSystem.dll

程序集:: mscorlib.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

从路径中删除 a DirectoryInfo 及其内容。

重载

名称	说明
Delete()	如果为 DirectoryInfo 空，则将其删除。
Delete(Boolean)	删除此实例 DirectoryInfo，指定是否删除子目录和文件。

Delete()

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

如果为 DirectoryInfo 空，则将其删除。

public:
 override void Delete();

public override void Delete();

override this.Delete : unit -> unit

Public Overrides Sub Delete ()

例外

UnauthorizedAccessException

目录包含只读文件。

DirectoryNotFoundException

此 DirectoryInfo 对象描述的目录不存在或找不到。

IOException

目录不为空。

-或-

目录中有一个打开的句柄，操作系统Windows XP或更早版本。此打开的句柄可能会导致枚举目录。有关详细信息，请参阅 “如何：枚举目录和文件”。

SecurityException

调用方没有所需的权限。

示例

如果尝试删除不为空的目录，以下示例将引发异常。

using System;
using System.IO;

class Test
{
    public static void Main()
    {
        // Specify the directories you want to manipulate.
        DirectoryInfo di1 = new DirectoryInfo(@"c:\MyDir");

        try
        {
            // Create the directories.
            di1.Create();
            di1.CreateSubdirectory("temp");

            //This operation will not be allowed because there are subdirectories.
            Console.WriteLine("I am about to attempt to delete {0}", di1.Name);
            di1.Delete();
            Console.WriteLine("The Delete operation was successful, which was unexpected.");
        }
        catch (Exception)
        {
            Console.WriteLine("The Delete operation failed as expected.");
        }
        finally {}
    }
}

open System.IO

// Specify the directories you want to manipulate.
let di1 = DirectoryInfo @"c:\MyDir"

try
    // Create the directories.
    di1.Create()
    di1.CreateSubdirectory "temp" |> ignore

    //This operation will not be allowed because there are subdirectories.
    printfn $"I am about to attempt to delete {di1.Name}"
    di1.Delete()
    printfn "The Delete operation was successful, which was unexpected."
with _ ->
    printfn "The Delete operation failed as expected."

Imports System.IO

Public Class Test
    Public Shared Sub Main()
        ' Specify the directories you want to manipulate.
        Dim di1 As DirectoryInfo = New DirectoryInfo("c:\MyDir")

        Try
            ' Create the directories.
            di1.Create()
            di1.CreateSubdirectory("temp")

            'This operation will not be allowed because there are subdirectories.
            Console.WriteLine("I am about to attempt to delete {0}", di1.Name)
            di1.Delete()
            Console.WriteLine("The Delete operation was successful, which was unexpected.")

        Catch
            Console.WriteLine("The Delete operation was unsuccessful, as expected.")
        End Try
    End Sub
End Class

注解

有关常见 I/O 任务的列表，请参阅常见 I/O 任务。

另请参阅

适用于

Delete(Boolean)

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

Source:: DirectoryInfo.cs

删除此实例 DirectoryInfo，指定是否删除子目录和文件。

public:
 void Delete(bool recursive);

public void Delete(bool recursive);

override this.Delete : bool -> unit

Public Sub Delete (recursive As Boolean)

参数

recursive: Boolean

true 删除此目录、其子目录和所有文件;否则，为 false.

例外

UnauthorizedAccessException

目录包含只读文件。

DirectoryNotFoundException

此 DirectoryInfo 对象描述的目录不存在或找不到。

IOException

目录是只读的。

-或-

该目录包含一个或多个文件或子目录，并且 recursive 是 false。

-或-

目录或其中一个文件上有一个打开的句柄，操作系统Windows XP或更早版本。此打开的句柄可能是枚举目录和文件导致的。有关详细信息，请参阅 “如何：枚举目录和文件”。

SecurityException

调用方没有所需的权限。

示例

以下示例演示如何删除目录。由于目录已删除，因此首先注释掉行 Delete 以测试该目录是否存在。然后取消注释相同的代码行，以测试已成功删除目录。

using System;
using System.IO;

public class DeleteTest
{
    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)
            di.Create();

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

        // Process that directory as required.
        // ...

        // Delete the subdirectory. The true indicates that if subdirectories
        // or files are in this directory, they are to be deleted as well.
        dis.Delete(true);

        // Delete the 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"

// Process that directory as required.
// ...

// Delete the subdirectory. The true indicates that if subdirectories
// or files are in this directory, they are to be deleted as well.
dis.Delete true

// Delete the directory.
di.Delete true

Imports System.IO

Public Class DeleteTest

    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

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

        ' Process that directory as required.
        ' ...

        ' Delete the subdirectory. The true indicates that if subdirectories
        ' or files are in this directory, they are to be deleted as well.
        dis.Delete(True)

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

注解

DirectoryInfo如果没有文件或子目录，此方法将DirectoryInfo删除即使recursive为。false 尝试删除引发时DirectoryInforecursive不为空的。falseIOException

有关常见 I/O 任务的列表，请参阅常见 I/O 任务。

另请参阅

适用于

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