请教各位老师：这段代码执行报错。不能获取本机的MAC地址。请问是哪出错了？谢谢!
代码：Dim query As System.Management.ManagementObjectSearcher = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration")
Dim queryCollection As System.Management.ManagementObjectCollection = query.Get()
Dim mo As New System.Management.ManagementObject
For Each mo In queryCollection
If IsDBNull(mo.Item("macaddress")) = False Then
If mo.Item("macaddress") <> "" Then
output.show(mo.Item("macaddress"))
End If
End If
Next
错误提示图如附件
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Post By：2012/4/12 8:50:00 [显示全部帖子]
