Question

我想检查文件是否存在，如果存在，我想打开它并阅读第1行，

如果文件不存在或者文件没有内容，那么我希望无声地失败而不让任何人知道发生了错误。

Answer 1

从这开始：

Set fso = CreateObject("Scripting.FileSystemObject")
If (fso.FileExists(path)) Then
   msg = path & " exists."
Else
   msg = path & " doesn't exist."
End If

取自documentation。

Answer 2

对于想要观看VBS中存在的特定文件的人：

Function bIsFileDownloaded(strPath, timeout)
  Dim FSO, fileIsDownloaded
  set FSO = CreateObject("Scripting.FileSystemObject")
  fileIsDownloaded = false
  limit = DateAdd("s", timeout, Now)
  Do While Now < limit
    If FSO.FileExists(strPath) Then : fileIsDownloaded = True : Exit Do : End If
    WScript.Sleep 1000      
  Loop
  Set FSO = Nothing
  bIsFileDownloaded = fileIsDownloaded
End Function

用法：

FileName = "C:\test.txt"
fileIsDownloaded = bIsFileDownloaded(FileName, 5) ' keep watching for 5 seconds

If fileIsDownloaded Then
  WScript.Echo Now & " File is Downloaded: " & FileName
Else
  WScript.Echo Now & " Timeout, file not found: " & FileName 
End If

Answer 3

现有文件夹将使用FileExists

失败

Function FileExists(strFileName)
' Check if a file exists - returns True or False

代替或另外使用：

Function FolderExists(strFolderPath)
' Check if a path exists

如何检查文件是否存在？

3 个答案: