Asp源碼：
<%
host=lcase(request.servervariables("HTTP_HOST"))
select CASE host
CASE "test1. y1web.com"
response.redirect "test1/index.asp"
CASE "www.shchuan.com"
response.redirect "index.html"
END select
%>

Php源碼：
<?php
switch ($_SERVER["HTTP_HOST"])
{
case "header("location:bbs/");
break;
case "taobao.test3.com":
header("location:taobao/");
break;
case "v.test3.com":
header("location:v/");
break;
}
?>