js刷新页面

1，history.go(0)
2，location.reload()
3，location=location
4，location.assign(location)
5，document.execCommand('Refresh')
6，window.navigate(location)
7，location.replace(location)
8，document.URL=location.href

页面自动刷新，加到head区

<meta http-equiv="refresh" content="20">

页面自动跳转，加到head区

<meta http-equiv="refresh" content="20;url=http://www.jb51.net">

页面自动刷新

<script language="JavaScript">
function myrefresh()
{
window.location.reload();
}
setTimeout('myrefresh()',1000); //指定1秒刷新一次
</script>