sasa

<% \'\'获取访问者的地址 ip=Request.ServerVariables(\"REMOTE_ADDR\") \'\'允许的IP地址段为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 \'\'判断IP地址段是否合法 response.write \"禁止访问\" exit function end if for i=0 to ubound(ipstr) if cint(allow1(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))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 %>