<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{margin: 0;padding: 0;}
#div1 ul li {float: left;width: 178px;height: 108px;list-style: none}
#div1 {width: 712px;height: 102px;margin: 100px auto;
position:relative;background: red;overflow: hidden }
#div1 ul {position: absolute;left: 0;top: 0;}
</style>
<script>
window.onload=function (ev) {
var oDiv=document.getElementById("div1");
var oul=oDiv.getElementsByTagName("ul")[0];
var ali=oDiv.getElementsByTagName("li");
var speed=2;
oul.innerHTML=oul.innerHTML+oul.innerHTML;
oul.style.width=ali[0].offsetWidth*ali.length+"px";
function move () {
if (oul.offsetLeft<-oul.offsetWidth/2){
oul.style.left="0";
}
if (oul.offsetLeft>0){
oul.style.left=-oul.offsetWidth/2+"px";
}
oul.style.left=oul.offsetLeft+speed+"px";
}
var time=setInterval(move,30);
oDiv.onmouseover=function (ev2) {
clearInterval(time);
};
oDiv.onmouseout=function (ev2) {
time=setInterval(move,30);
};
document.getElementsByTagName("a")[0].onclick=function () {
speed=-2;
};
document.getElementsByTagName("a")[1].onclick=function () {
speed=2;
}
}
</script>
</head>
<body>
<a href="javascript:;">向左走</a>
<a href="javascript:;">向右走</a>
<div id="div1">
<ul>
<li><img src="images/1.jpg" alt=""></li>
<li><img src="images/2.jpg" alt=""></li>
<li><img src="images/3.jpg" alt=""></li>
<li><img src="images/4.jpg" alt=""></li>
</ul>
</div>
</body>
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