<script language="JavaScript">

function myRefresh(url,t) {
window.setTimeout( myRedirect(url), t*1000 );
}
function myRedirect(url) {
window.location.href = url;
}

window.onload = function() {
myRefresh('http://www.heima888.net/',5);
//直接把上述网址替换成你想要的网址或文件路径即可,后面一个参数是要跳转的秒数;
}
</script>

<META http-equiv="refresh" content="5;url=xxx">


content 后面是时间

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