LibreOffice 25.2 帮助
发生错误时启用错误处理例程或恢复程序执行。
  
On [Local] Error {GoTo Labelname | GoTo 0 | Resume Next}
「GoTo Labelname」: 当发生错误时,在行 "Labelname" 的开始部分启用错误处理例程。
「Resume Next」: 发生错误时,程序继续执行出错语句后面的语句。
「GoTo 0」: 在当前过程中禁用错误处理程序。
Local: Optional. The keyword is a reminder the statement is local to the routine which invokes it; when the routine exits, this error handling is canceled automatically.
Sub ExampleReset
On Error GoTo ErrorHandler
    Dim iNumber As Integer
    Dim iCount As Integer
    Dim sLine As String
    Dim aFile As String
    aFile = "C:\Users\ThisUser\data.txt"
    iNumber = Freefile
    Open aFile For Output As #iNumber
    Print #iNumber, "This is a line of text"
    Close #iNumber
    iNumber = Freefile
    Open aFile For Input As iNumber
    For iCount = 1 To 5
        Line Input #iNumber, sLine
        If sLine <>"" Then
            Rem
        End If
    Next iCount
    Close #iNumber
    Exit Sub
ErrorHandler:
    Reset
    MsgBox "All files will be closed",  0,  "Error"
End Sub