以下程序错在哪里?
'选择该层所有对象 Public Sub s() Dim sset As AcadSelectionSet On Error Resume Next Set sset = ThisDrawing.SelectionSets.Item("SS1") sset.Delete Set sset = ThisDrawing.SelectionSets.Add("SS1") FilterType = 8 FilterData = "0" sset.SelectOnScreen FilterType, FilterData End Sub