问VBScript未定义的变量错误

EN

<script language="VBScript">
Option Explicit
' On Error Resume Next


Dim colIPResults, objFile, objFSO, objNIC, objWMI, objWSHNetwork, strAddresses, strIPAddress, strWQL
Const FOR_APPENDING = 8

Sub DestroyObjects()
If IsObject(objFile) Then Set objFile = Nothing
If IsObject(objFSO) Then Set objFSO = Nothing
If IsObject(objWMI) Then Set objWMI = Nothing
If IsObject(objWSHNetwork) Then Set objWSHNetwork = Nothing
' If IsObject() Then Set = Nothing
End Sub


Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objWSHNetwork = CreateObject("WScript.Network")
Set objWMI = GetObject("WinMGMTS:root\cimv2")
Set StrComputer = objWSHNetwork.Computername 
strWQL = "SELECT IPAddress FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 'True'"
Set colIPResults = objWMI.ExecQuery(strWQL)
For Each objNIC In colIPResults
For Each strIPAddress in objNIC.IPAddress
If strAddresses = "" Then
strAddresses = strIPAddress
Else
strAddresses = strAddresses
End If
Next
Next

Document.write("PC Tag Number: " + StrComputer)

If strAddresses ="0.0.0.0" Or strAddresses ="" or strAddresses = "undefined" Then
    Document.write("No Connection Detected")
Else
    Document.write "Network Address - "+ strAddresses
End If

DestroyObjects()
</script>