IBM Lotus Symphony
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发生错误后启用错误处理例程,或恢复程序执行。
On {Error GoTo Labelname | GoTo 0 | Resume Next}
GoTo Labelname:当发生错误时,使错误处理例程跳转到“Labelname”行处开始执行。
Resume Next:当发生错误时,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。
On Error GoTo 语句用于处理宏中发生的错误。该语句必须插入到过程(位于本地错误处理例程中)或模块的开始位置。
Sub ExampleReset
On Error Goto ErrorHandler
Dim iNumber As Integer
Dim iCount As Integer
Dim sLine As String
Dim aFile As String
aFile = "c:\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:
重置
MsgBox "All files will be closed",0,"Error"
End Sub