<System.ComponentModel.Description "删除目录内所有文件")> _ Public Shared Function DelFiles )Function DelFiles ByVal sPhysicalDirectory As System.String, Optional ByVal isPhysicalDirectory As Boolean = True) As Boolean Dim oDirectoryInfo As System.IO.DirectoryInfo Dim oFileInfo As System.IO.FileInfo If isPhysicalDirectory = False Then sPhysicalDirectory = System.Web.HttpContext.Current.Server.MapPath sPhysicalDirectory) End If Try If System.IO.Directory.Exists sPhysicalDirectory) = False Then Exit Function oDirectoryInfo = New System.IO.DirectoryInfo sPhysicalDirectory) For Each oFileInfo In oDirectoryInfo.GetFiles System.IO.File.Delete oFileInfo.FullName) Next Return True Catch ex As System.Exception Common.Exception.Append ex) Return False End Try End Function

C#
[

System.ComponentModel.Description "删除目录内所有文件")] public static bool DelFiles System.String sPhysicalDirectory) { DelFiles sPhysicalDirectory, true) } [System.ComponentModel.Description "删除目录内所有文件")] public static bool DelFiles System.String sPhysicalDirectory, bool isPhysicalDirectory) { System.IO.DirectoryInfo oDirectoryInfo; System.IO.FileInfo oFileInfo; if  isPhysicalDirectory == false) { sPhysicalDirectory = System.Web.HttpContext.Current.Server.MapPath sPhysicalDirectory); } try { if  System.IO.Directory.Exists sPhysicalDirectory) == false) { goto exitMethodDeclaration0; } oDirectoryInfo = new System.IO.DirectoryInfo sPhysicalDirectory); foreach  int oFileInfo in oDirectoryInfo.GetFiles) { System.IO.File.Delete oFileInfo.FullName); } return true; } catch  System.Exception ex) { Common.Exception.Append ex); return false; } exitMethodDeclaration0: ; }

1 建议不调用CMD执行rd的命令
2 删除目录、目录内的子目录以及目录内所有文件
VB.NET语法

<System.ComponentModel.Description "删除目录、目录内的子目录以及目录内所有文件")> _ Public Shared Sub DelDirectory )Sub DelDirectory ByVal sDirectory As System.String, Optional ByVal isPhysicalDirectory As Boolean = True) Dim sBaseFile As String Dim sBaseDirectory As String If isPhysicalDirectory = False Then sBaseDirectory = System.Web.HttpContext.Current.Server.MapPath sDirectory) Else sBaseDirectory = sDirectory End If Try If System.IO.Directory.Exists sBaseDirectory) = False Then Exit Sub For Each sBaseFile In System.IO.Directory.GetFiles sBaseDirectory) System.IO.File.Delete sBaseFile) Next For Each sBaseDirectory In System.IO.Directory.GetDirectories sBaseDirectory) DelDirectory sBaseDirectory, True) If System.IO.Directory.GetFiles sBaseDirectory).Length = 0 And System.IO.Directory.GetDirectories sBaseDirectory).Length = 0 Then System.IO.Directory.Delete sBaseDirectory) End If Next Catch ex As System.Exception Common.Exception.Append ex) End Try End Sub

C#语法

[System.ComponentModel.Description "删除目录、目录内的子目录以及目录内所有文件")] public static void DelDirectory System.String sDirectory) { DelDirectory sDirectory, true); } [System.ComponentModel.Description "删除目录、目录内的子目录以及目录内所有文件")] public static void DelDirectory System.String sDirectory, bool isPhysicalDirectory) { //string sBaseFile; string sBaseDirectory; if  isPhysicalDirectory == false) { sBaseDirectory = System.Web.HttpContext.Current.Server.MapPath sDirectory); } else { sBaseDirectory = sDirectory; } try { if  System.IO.Directory.Exists sBaseDirectory) == false) { goto exitMethodDeclaration0; } foreach  string sPhysicalFile in System.IO.Directory.GetFiles sBaseDirectory)) { System.IO.File.Delete sPhysicalFile); } foreach  string sPhysicalDirectory in System.IO.Directory.GetDirectories sBaseDirectory)) { DelDirectory sPhysicalDirectory, true); if  System.IO.Directory.GetFiles sPhysicalDirectory).Length == 0 & System.IO.Directory.GetDirectories sPhysicalDirectory).Length == 0) { System.IO.Directory.Delete sPhysicalDirectory); } } } catch  System.Exception ex) { //Common.Exception.Append ex); System.Web.HttpContext.Current.Response.Write ex.Message); } exitMethodDeclaration0: ; }