<!doctype html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="keywords" content="关键字1,关键字2" />
<meta name="Description" content="描述信息" />
<title>循环滚动</title>
<!--CSS/JS-->
<style type="text/css">
*{margin:0;padding:0;}
ul,li{list-style:none;display:block;}
#scrollBox{height:150px;width:300px;margin:100px auto;background:#f09;overflow:hidden;}
#scrollBox #con1,#con2{width:280px;float:left;}
#scrollBox li{height:15px;line-height:15px;text-align:center;}
</style>
</head>
<body>
<!--div-->
<div id="scrollBox">
<ul id="con1">
<li>李华 中了10块钱<li>
<li>Leo 中了一个手机<li>
<li>刘明 中了一块毛巾<li>
<li>ll 中了保温杯<li>
<li>nice 中了100块钱红包<li>
<li>108 中了20元优惠券<li>
<li>ok 中了100块钱<li>
</ul>
<ul id="con2"></ul>
</div>
<script type="text/javascript">
var area =document.getElementById('scrollBox');
var con1 = document.getElementById('con1');
var con2 = document.getElementById('con2');
con2.innerHTML=con1.innerHTML;
function scrollUp(){
if(area.scrollTop>=con1.offsetHeight){
area.scrollTop=0;
}else{
area.scrollTop++
}
}
var time = 50;
var mytimer=setInterval(scrollUp,time);
area.onmouseover=function(){
clearInterval(mytimer);
}
area.onmouseout=function(){
mytimer=setInterval(scrollUp,time);
}
</script>
</body>
</html>
為什么要兩個(gè)ul,其中的scrollUp函數(shù)能給講解一下嗎？
成長(zhǎng)前端初學(xué)者
2017-12-27 22:27:39
