now spam is flying all over the sky, there are always some people who have nothing to do, recommend a set of three defense equipment, anti-garbage, anti-irrigation, anti-robot.

for one thing, add a CAPTCHA to the submission page. There are a lot of CAPTCHA on the Internet. For the generation of CAPTCHA, please see: http://www.design2u.net/home/index.php?action=show&id=23

second, prevent refreshing water, prevent those who have nothing to refresh, code:

 & lt;%lock\ _ time=60 'set the number of intervals (in seconds)If session (& quot;idvip\ _ re") & lt;>"" thenIf DateDiff (& quot;s",session (& quot;idvip\ _ re"), Now () & lt;lock\ _ time ThenResponse.write & quot;