要善于利用代码实现对 IP 的访问限制

'可以进入的ip 
'218.7.44.0 - 218.7.45.253 
'61.180.240.0 - 61.180.240.253 
 
'202.118.208.0 - 202.118.223.253 
' 
'218.7.44.0 3657903103 
'218.7.45.253 3657903612 
' 
'61.180.240.0 1035268095 
'61.180.240.253 1035268348 
' 
'202.118.208.0 3396784127 
'202.118.223.253 3396788220 


ip=request.servervariables("remote_addr") 
sip=split(ip,".") 
num=cint(sip(0))*256*256*256+cint(sip(1))*256*256+cint(sip(2))*256+cint(sip(3))-1 
response.write(ip) 
response.write("<br>") 
if ((num>=3657903103 and num<=3657903612) or (num>=1035268095 and num<=1035268348) 
or (num>=3396784127 and num<=3396788220)) then 
response.write("抱歉，您的ip不合法！") 
response.End() 
else 
response.write("您的ip合法") 
end if