asp 中對 ip 進行過濾限制函數

看了一些IP限制的函數，覺得太復雜。所以，試著寫了一個，比較簡單。請網友參考指教。謝謝！～

作者聯系郵件 stone2zz#21cn.com

代碼拷貝框
<% @#獲取訪問者的地址 ip=Request.ServerVariables("REMOTE_ADDR") @#允許的IP地址段為10.0.0.0～10.68.63.255 allowip1="10.0.0.0" allowip2="10.68.10.71" response.write checkip(ip,allowip1,allowip2) function checkip(ip,allowip1,allowip2) dim check(4) checkip=false ipstr=split(ip,".") allow1=split(allowip1,".") allow2=split(allowip2,".") if cint(allow1(0))>cint(allow2(0)) then @#判斷IP地址段是否合法 response.write "IP地址段出錯！" exit function end if for i=0 to ubound(ipstr) if cint(allow1(i))<cint(allow2(i)) then if cint(allow1(i))=cint(ipstr(i)) then check(i)=true checkip=true exit for else if cint(ipstr(i))<cint(allow2(i)) then check(i)=true checkip=true exit for else if cint(ipstr(i))>cint(allow2(i)) then check(i)=false checkip=false exit for else check(i)=true checkip=true end if end if end if else if cint(allow1(i))>cint(ipstr(i)) or cint(allow1(i))<cint(ipstr(i)) then check(i)=false checkip=false if i<>ubound(ipstr) then exit for end if else check(i)=true end if end if next if (check(0)=true and check(1)=true and check(2)=true and check(3)=false) and (cint(allow2(2))>cint(ipstr(2))) then checkip=true end if end function %>
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