js图片滚动无缝衔接
<style>
*{
margin:0;
padding:0;
}
div{
width:600px;
height:200px;
position:relative;
border:1px solid red;
margin:100px;
overflow:hidden;
}
ul{
width:600%;
position:absolute;
left:0;
}
li{
float:left;
list-style:none;
}
</style>
<body>
<div id="box">
<ul id="u">
<li><img src="a.jpg" /></li>
<li><img src="b.jpg" /></li>
<li><img src="c.jpg" /></li>
<li><img src="d.jpg" /></li>
<li><img src="a.jpg" /></li>
<li><img src="b.jpg" /></li>
</ul>
</div>
</body>
</html>
<script>
var num = 0; // 默认ul位置
var oUl = document.getElementById("u");
var box = document.getElementById("box");
function autoPlay(){
oUl.style.left=num+"px";
num-=2;
if(num<=-1200){
num=0
}
}
var timer=setInterval(autoPlay,100);
box.onmouseover=function(){
clearInterval(timer);
}
box.onmouseout=function(){
timer=setInterval(autoPlay,100);
}
</script>原文：https://www.cnblogs.com/lxystar/p/10214633.html