谢谢!我已经找到了一种方法实现了这个功能!是用:For i = 0 To ssetObj.Count - 1
If ssetObj.Item(i).EntityType = acLine Then
LineLength = LineLength + ssetObj.Item(i).Length
End If
If ssetObj.Item(i).EntityType = acArc Then
ArcLength = ArcLength + ssetObj.Item(i).ArcLength
End If
Next i