这些写法是301重定向? 还是302重定向?
于娜 2011-09-23 10:39:01 <meta http-equiv="refresh" content="20;url=http://www.xxx.com">
<script language="JavaScript">
<!--
location.replace(http://www.xxx.com);
-->
</script>
JavaScript代码
<script language="JavaScript">
<!--
window.location=http://www.xxx.com;
-->
</script>