.net 如何从文件夹中删除特定类型的所有文件
我使用以下代码删除特定文件夹中的所有文件:.net 如何从文件夹中删除特定类型的所有文件,.net,vb.net,.net,Vb.net,我使用以下代码删除特定文件夹中的所有文件: Sub DeleteFilesFromFolder(Folder As String) If Directory.Exists(Folder) Then For Each _file As String In Directory.GetFiles(Folder) File.Delete(_file) Next For Each _folder As String In Di
Sub DeleteFilesFromFolder(Folder As String)
If Directory.Exists(Folder) Then
For Each _file As String In Directory.GetFiles(Folder)
File.Delete(_file)
Next
For Each _folder As String In Directory.GetDirectories(Folder)
DeleteFilesFromFolder(_folder)
Next
End If
End Sub
调用函数:
DeleteFilesFromFolder("C:\New Folder")
现在,我想从新文件夹中删除所有*.pdf
文档。如何仅从文件夹(包括子文件夹)中删除*.pdf
文件?目录.GetFiles()
允许您应用搜索模式并返回与此模式匹配的文件
Sub DeleteFilesFromFolder(Folder As String)
If Directory.Exists(Folder) Then
For Each _file As String In Directory.GetFiles(Folder, "*.pdf")
File.Delete(_file)
Next
For Each _folder As String In Directory.GetDirectories(Folder)
DeleteFilesFromFolder(_folder)
Next
End If
End Sub
查看MSDN链接了解更多信息:在继续删除之前,只需检查扩展名即可
Sub DeleteFilesFromFolder(Folder As String)
If Directory.Exists(Folder) Then
For Each _file As String In Directory.GetFiles(Folder)
If System.IO.Path.GetExtension(_file) = ".pdf" Then ' Check extension
File.Delete(_file)
End If
Next
For Each _folder As String In Directory.GetDirectories(Folder)
DeleteFilesFromFolder(_folder)
Next
End If
End Sub
Directory.GetFile应返回包含扩展名的文件名。如果是这样,它将像
如果_file.contains(“.pdf”)那么file.Delete(_file)如果
那么结束一样简单。或者,向GetFile添加一个过滤器