Function CheckDir(Byval FolderPath)
dim fso
folderpath=Server.MapPath(".")&"\"&folderpath
Set fso = Server.CreateObject("Scripting.FileSystemObject")
If fso.FolderExists(FolderPath) then
'存在
    CheckDir = True
Else
'不存在
    CheckDir = False
End if
Set fso = nothing
End Function

Function isExistFolder(Byval folderDir)
	on error resume next
	If objFso.FolderExists(server.MapPath(folderDir)) Then isExistFolder=True Else isExistFolder=False
	if err then err.clear:isExistFolder=False
End Function

Function CheckFile(Byval FilePath) '检查某一文件是否存在
  Dim fso
  Filepath=Server.MapPath(FilePath)
  Set fso = Server.CreateObject("Scripting.FileSystemObject")
  If fso.FileExists(FilePath) then
  '存在
      CheckFile = True
  Else
  '不存在
      CheckFile = False
  End if
  Set fso = nothing
End Function

Function isExistFile(Byval fileDir)
	on error resume next
	If (objFso.FileExists(server.MapPath(fileDir))) Then isExistFile=True Else isExistFile=False
	if err then err.clear:isExistFile=False
End Function

'================================================== 
'函数名: CheckFile 
'作 用：检查某一文件是否存在 
'参 数：FileName ------ 文件地址 如:/swf/1.swf 
'返回值：False ---- True 
'================================================== 
  Public Function CheckFile(FileName) 
     On Error Resume Next 
     Dim FsoObj 
     Set FsoObj = Server.CreateObject("Scripting.FileSystemObject") 
     If Not FsoObj.FileExists(Server.MapPath(FileName)) Then 
       CheckFile = False 
       Exit Function 
     End If 
     CheckFile = True:Set FsoObj = Nothing 
  End Function