<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
<script language="javascript" type="text/javascript">
$(function () {
var demo = $("#demo")[0];
var demo1 = $("#demo1")[0];
var demo2 = $("#demo2")[0];
var speed = 10; //滚动速度值，值越大速度越慢
var nnn = 200 / demo1.offsetHeight;
for (i = 0; i < nnn; i++) {
demo1.innerHTML += "<br />" + demo1.innerHTML
}
demo2.innerHTML = demo1.innerHTML //克隆demo2为demo1
function Marquee() {
if (demo2.offsetTop - demo.scrollTop <= 0) //当滚动至demo1与demo2交界时
demo.scrollTop -= demo1.offsetHeight //demo跳到最顶端
else {
demo.scrollTop++
}
}
var MyMar = setInterval(Marquee, speed); //设置定时器
demo.onmouseover = function () {
clearInterval(MyMar)
} //鼠标经过时清除定时器达到滚动停止的目的
demo.onmouseout = function () {
MyMar = setInterval(Marquee, speed)
} //鼠标移开时重设定时器
});
</script>
</head>
<body>
<div align="center" id="demo" style="overflow:hidden;height:200px;600px;border:1px solid #000;">
<div id="demo1">
HTML5是一个丰富的应用，可以给用户很多视觉上的享受！
</div>
<div id="demo2"></div>
</div>
</body>
</html>
转自：https://my.oschina.net/guopengfei/blog/534891