请将下列函数放到代码的模块中，然后在窗体的某个按钮的单击事件中写调用代码：

Shell_MakeFolderStructure("C:\Temp\Test1\Test2\Test3")

Function Shell_FolderExist(sFolder As Variant) As Boolean
    On Error GoTo Error_Handler
        Dim oShell            As Object
        Dim oFolder           As Object
        Set oShell = CreateObject("Shell.Application")
    
    Set oFolder = oShell.NameSpace(sFolder)
    If Not oFolder Is Nothing Then Shell_FolderExist = True

Error_Handler_Exit:
    On Error Resume Next
    Set oFolder = Nothing
    Set oShell = Nothing
    Exit Function

Error_Handler:
    MsgBox "The following error has occurred" & vbCrLf & vbCrLf & _
           "Error Source: Shell_FolderExist" & vbCrLf & _
           "Error Number: " & Err.Number & vbCrLf & _
           "Error Description: " & Err.Description & _
           Switch(Erl = 0, "", Erl <> 0, vbCrLf & "Line No: " & Erl) _
           , vbOKOnly + vbCritical, "An Error has Occurred!"
    Resume Error_Handler_Exit
End Function