VBA script to Unzip Files - It's Just Creating Empty Folders

问题

I'm using the code by Ron (http://www.rondebruin.nl/win/s7/win002.htm) to, in theory, unzip a bunch of zip files in a folder. I believe what I have below is the code that takes each zip file in my 'Downloads' directory, creates a new folder with the name of the zip file without the ".zip", and then extracts the files into the new folder. I am not getting any errors (many times people get the runtime error 91) but the only thing that happens is that it creates a bunch of correctly named folders but they are all empty.

Sub UnZipMe()

Dim str_FILENAME As String, str_DIRECTORY As String, str_DESTINATION As String

'Your directory where zip file is kept
str_DIRECTORY = "C:\Users\Jennifer\Downloads\"

'Loop through all zip files in a given directory
str_FILENAME = Dir(str_DIRECTORY & "*.zip")

Do While Len(str_FILENAME) > 0
    Call Unzip1(str_DIRECTORY & str_FILENAME)
    Debug.Print str_FILENAME
    str_FILENAME = Dir
Loop

End Sub

Sub Unzip1(str_FILENAME As String)
    Dim oApp As Object
    Dim Fname As Variant
    Dim FnameTrunc As Variant
    Dim FnameLength As Long

    Fname = str_FILENAME
    FnameLength = Len(Fname)
    FnameTrunc = Left(Fname, FnameLength - 4) & "\"

    If Fname = False Then
        'Do nothing
    Else
        'Make the new folder in root folder
        MkDir FnameTrunc

        'Extract the files into the newly created folder
        Set oApp = CreateObject("Shell.Application")
        oApp.Namespace(FnameTrunc).CopyHere oApp.Namespace(Fname).items
    End If
End Sub

回答1:

The problem is you are not giving windows enough time to extract the zip file. Add DoEvents after the line as shown below.

TRIED AND TESTED

    oApp.Namespace(FnameTrunc).CopyHere oApp.Namespace(Fname).items
    DoEvents

来源：https://stackoverflow.com/questions/19809056/vba-script-to-unzip-files-its-just-creating-empty-folders