转化ip地址为长整型数字

将ip地址转换为长整型

<%
Function CLngIP(ByVal asNewIP)
Dim lnResults
Dim lnIndex
Dim lnIpAry
lnIpAry = Split(asNewIP, ".", 4)
For lnIndex = 0 To 3
If Not lnIndex = 3 Then
lnIpAry(lnIndex) = lnIpAry(lnIndex) * (256 ^ (3 - lnIndex))
End If
lnResults = lnResults + lnIpAry(lnIndex)
Next
CLngIP = lnResults
End Function
%>

逆函数

<%
Function CStrIP(ByVal anNewIP)
Dim lsResults
Dim lnTemp
Dim lnIndex
For lnIndex = 3 To 0 Step -1
lnTemp = Int(anNewIP / (256 ^ lnIndex))
lsResults = lsResults & lnTemp & "."
anNewIP = anNewIP - (lnTemp * (256 ^ lnIndex))
Next
lsResults = Left(lsResults, Len(lsResults) - 1)
CStrIP = lsResults
End Function
%>