问如何使用vba遍历所有子文件夹及其子子文件夹等，检查文件夹是否存在？

EN

Option Explicit
Sub VersionRename()

Dim SelectedFolder As FileDialog
Dim T_Str As String
Dim FSO As Object
Dim RenamingFolder As Object, SubFolder As Object
Dim T_Name As String

Set SelectedFolder = Application.FileDialog(msoFileDialogFolderPicker)
    SelectedFolder.Title = "Select folder:"
    SelectedFolder.ButtonName = "Select Folder"
    If SelectedFolder.Show = -1 Then
        T_Str = SelectedFolder.SelectedItems(1)
    Else
        'MsgBox "Cancelled by user.", vbInformation
    Set SelectedFolder = Nothing
    Exit Sub
    End If

    Set SelectedFolder = Nothing

    Set FSO = CreateObject("Scripting.FileSystemObject")
    Set RenamingFolder = FSO.GetFolder(T_Str)
        File_Renamer RenamingFolder

    For Each SubFolder In RenamingFolder.SubFolders
        File_Renamer SubFolder
    Next

    Set SubFolder = Nothing
    Set RenamingFolder = Nothing
    Set FSO = Nothing

    MsgBox "Process completed!", vbInformation, Title:="Renaming Files"


End Sub
Private Sub File_Renamer(Folder As Object)

Dim File As Object
Dim T_Str As String
Dim T_Name As String
Dim PreVersionID As Variant
Dim NextVersionID As Variant 
Dim StringReplace As String

    PreVersionID = Application.InputBox("Input 1 if no version number otherwise input existing version number:", Type:=1)
    If PreVersionID = False Then Exit Sub
    NextVersionID = Application.InputBox("Input your next version number:", Type:=1)
    If NextVersionID = False Then Exit Sub


    T_Str = Format("_V" & NextVersionID)

    For Each File In Folder.Files
        T_Name = File.Name
        'Debug.Print T_Name
        If NextVersionID > 1 Then
            StringReplace = Replace(T_Name, "_V" & PreVersionID, "", 1, 3)
            'Debug.Print StringReplace
            File.Name = Left(StringReplace, InStrRev(StringReplace, ".") - 1) & T_Str & Right(StringReplace, Len(StringReplace) - (InStrRev(StringReplace, ".") - 1))
        Else
            File.Name = Left(T_Name, InStrRev(T_Name, ".") - 1) & T_Str & Right(T_Name, Len(T_Name) - (InStrRev(T_Name, ".") - 1))
        End If
    Next
End Sub