获得文件夹大小的VBS代码

‘----------------------
‘获得文件夹的大小
‘Author   = baiyang
‘Version = 1.0
‘Date   = 09.08.08
‘----------------------
Option Explicit
On Error Resume Next
Dim objFSO, objLocalFolder, strArg, longLocalFolderSize, strSizeMess
‘判断是不是没有路径参数
If WScript.Arguments.Count < 1 Then
   WScript.Echo "参数无效, 第一个参数为路径"
   WScript.Quit
Else
   strArg = WScript.Arguments(0)
End If

Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objLocalFolder = objFSO.GetFolder(strArg)

If objLocalFolder = Empty Then
   WScript.Echo "Invalid Path"
   WScript.Quit
End If

longLocalFolderSize = objLocalFolder.Size

If longLocalFolderSize>=1024 And longLocalFolderSize<1024*1024 Then
   strSizeMess = Round( longLocalFolderSize/1024, 3 ) & " K"
   ElseIf longLocalFolderSize>=1024*1024 And longLocalFolderSize<1024*1024*1024 Then
    strSizeMess = Round( longLocalFolderSize/1024/1024, 3 ) & " M"
    ElseIf longLocalFolderSize>=1024*1024*1024 Then
     strSizeMess = Round( longLocalFolderSize/1024/1024/1024, 3 ) & " G"
     Else
      strSizeMess = longLocalFolderSize & " B"
End If

WScript.Echo strSizeMess
Set objFSO = Nothing
Set objLocalFolder = Nothing
WScript.Quit