以下是引用片段：
可(kě)單獨放(fàng)置在某個頁面或獨立成一個文件(jiàn)進行調用
<%
'受屏蔽IP地址(段)集合，星号爲通配符，通常保存于配置文件(jiàn)中。
Const BadIPGroup = "94.142.131.20|124.225.74.51|192.168.0.*|59.26.284.*"
If IsForbidIP(BadIPGroup) = True Then
Response.Write(GetIP &"系統已記錄您的ＩＰ地址信息")
Response.Write("<BR>")
Response.Write("由于您在本站(zhàn)發布大(dà)量垃圾信息！管理(lǐ)員(yuán)已禁止您訪問(wèn)站(zhàn)點。")
Response.Write("<BR>")
Response.Write("需要開通請(qǐng)聯系")
Response.End()
End If
'參數vBadIP：要屏蔽的IP段,IP地址集合，用|符号分(fēn)隔多個IP地址(段)
'返回Bool：True用戶IP在被屏蔽範圍，False 反之
Function IsForbidIP(vBadIP)
Dim counter, arrIPPart, arrBadIP, arrBadIPPart, i, j
arrBadIP = Split(vBadIP, "|")
arrIPPart = Split(GetIP(), ".")
For i = 0 To UBound(arrBadIP)
counter = 0
arrBadIPPart = Split(arrBadIP(i), ".")
For j = 0 To UBound(arrIPPart)
If(arrBadIPPart(j)) = "*" or Cstr(arrIPPart(j)) = Cstr(arrBadIPPart(j)) Then
counter = counter + 1
End If
Next
If counter = 4 Then
IsForbidIP = True
Exit Function
End If
Next
IsForbidIP = False
End Function
''返回客戶IP地址
Function GetIP()
Dim IP
IP = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
If IP = "" Then IP = Request.ServerVariables("REMOTE_ADDR")
GetIP = IP
End Function
%>
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