Private Sub Item1_Click()
If Left(Me!Item1.Tag, 1) = 1 Then
Me.Subform.SourceObject = "frmInfo"
End If
If Left(Me!Item1.Tag, 1) = 2 Then
Me.Subform.SourceObject = "frmQryInvoice"
End If
If Left(Me!Item1.Tag, 1) = 3 Then
Me.Subform.SourceObject = "frmReport"
End If
If Left(Me!Item1.Tag, 1) = 4 Then
Me.Subform.SourceObject = "frmModify"
End If
End Sub
请问该代码的作用?[em24]