在<head>
</head> 之间增加 ，
<script language="javascript">
function window.onload()
{
var arr;
if(arr=document.cookie.match(/scrollTop=([^;]+)(;|$)/))
document.documentElement.scrollTop=parseInt(arr[1]);
document.body.scrollTop=parseInt(arr[1]);
}
function window.onbeforeunload(){
var scrollPos;
if (typeof window.pageYOffset != 'undefined') {
scrollPos = window.pageYOffset;
}
else if (typeof document.compatMode != 'undefined' &&
document.compatMode != 'BackCompat') {
scrollPos = document.documentElement.scrollTop;
}
else if (typeof document.body != 'undefined') {
scrollPos = document.body.scrollTop;
}
document.cookie="scrollTop="+scrollPos;
}
</script>
</head> 之间增加 ，
<script language="javascript">
function window.onload()
{
var arr;
if(arr=document.cookie.match(/scrollTop=([^;]+)(;|$)/))
document.documentElement.scrollTop=parseInt(arr[1]);
document.body.scrollTop=parseInt(arr[1]);
}
function window.onbeforeunload(){
var scrollPos;
if (typeof window.pageYOffset != 'undefined') {
scrollPos = window.pageYOffset;
}
else if (typeof document.compatMode != 'undefined' &&
document.compatMode != 'BackCompat') {
scrollPos = document.documentElement.scrollTop;
}
else if (typeof document.body != 'undefined') {
scrollPos = document.body.scrollTop;
}
document.cookie="scrollTop="+scrollPos;
}
</script>