防止一般的采集以及小偷读取，加在顶部。
同理，可以改造成JS脚本。

<%
Dim AppealNum,AppealCount
AppealNum=10                                                 '同一IP60秒内请求限制10次
AppealCount=Request.Cookies("AppealCount")
If AppealCount="" Then
response.Cookies("AppealCount")=1
AppealCount=1
response.cookies("AppealCount").expires=dateadd("s",60,now())
Else
response.Cookies("AppealCount")=AppealCount+1
response.cookies("AppealCount").expires=dateadd("s",60,now())
End If
if int(AppealCount)>int(AppealNum) then
response.write "抓取很累，歇一会儿吧！"
response.end
End If
%>