帮我看看这段代码
Sub Example_Bind()On Error GoTo ERRORHANDLER
' Define external reference to be inserted
Dim xrefHome As AcadBlock
Dim xrefInserted1 As AcadExternalReference
Dim xrefInserted2 As AcadExternalReference
Dim insertionPnt(0 To 2) As Double
Dim PathName As String
insertionPnt(0) = 1
insertionPnt(1) = 1
insertionPnt(2) = 0
PathName = "e:/lgs/ER1.dwg"
' Add the external reference
Set xrefInserted1 = ThisDrawing.ModelSpace. _
AttachExternalReference(PathName, "XREF_IMAGE", _
insertionPnt, 1, 1, 1, 90, False)
Set xrefInserted2 = ThisDrawing.ModelSpace. _
AttachExternalReference(PathName, "XREF_IMAGE", _
insertionPnt, 1, 1, 1, 0, False)
ZoomAll
MsgBox "The external reference is attached."
' Bind the external reference definition
ThisDrawing.Blocks.Item(xrefInserted1.Name).Bind False
'ThisDrawing.Blocks.Item(xrefInserted2.Name).Bind False
MsgBox "The external reference is bound."
Exit Sub
ERRORHANDLER:
MsgBox Err.Description
End Sub为什么不要ThisDrawing.Blocks.Item(xrefInserted1.Name).Bind False就可以在一个CAD窗口多次运行程序？
但采用ThisDrawing.Blocks.Item(xrefInserted1.Name).Bind False却不能在同一个CAD窗口多次运行程序，是不是该CAD图块文件被独占打开，而没有关闭。有什么办法不去掉该语句并能解决这个问题吗？
先谢谢大侠！
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