Sub ConnectCAD()
'连接到AutoCAD
Dim AcadApp As Object '定义一个对象
On Error Resume Next
Set AcadApp = GetObject(, "AutoCAD.Application")
If Err Then '如果没有一个AutoCAD副本在运行
Err.Clear
Set AcadApp = CreateObject("AutoCAD.Application")
AcadApp.Visable = True '启动一个AutoCAD副本并设为可见
If Err Then
MsgBox Err.Description '如果失败,给出错误提示
Exit Sub
End If
End If
End Sub