'遍历处理path及其子目录所有文件
Sub ShowAllFile(Path)
    Set FSO = CreateObject("Scripting.FileSystemObject")
    Set f = FSO.GetFolder(Path)
    Set fc2 = f.files
    For Each myfile in fc2
         WScript.Echo path&"\"&     
    Next
    Set fc = f.SubFolders
    For Each f1 in fc
        ShowAllFile path&"\"&
        Next
    Set FSO = Nothing
End Sub 
遍历所有folder_中的txt文件
'根目录
Set fso=createobject("scripting.filesystemobject") 
set folder_=fso.getfolder(folder_)
set files=folder_.files
for each file in files
 ext=mid(file,InStrRev(file, ".")+1)
 ext=lcase(ext)
 if ext="txt" then
  MsgBox(file)
 end if
next'根目录+子目录
sub scan(folder_)
Set fso=createobject("scripting.filesystemobject") 
set folder_=fso.getfolder(folder_)
set files=folder_.files
for each file in files
 ext=mid(file,InStrRev(file, ".")+1)
 ext=lcase(ext)
 if ext="txt" then
  all_file=all_file+file+"  "
 end if
next
set subfolders=folder_.subfolders
for each subfolder in subfolders
 scan(subfolder)
next 
end sub
all_file=""
scan("E:\shi")
WScript.Echo all_file