<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<style>
* {
margin: 0;
padding: 0;
list-style: none;
}
.wrap {
height: 400px;
width: 500px;
margin: 60px auto;
overflow: hidden;
position: relative;
margin: 100px auto;
}
.wrap ul {
position: absolute;
}
.wrap ol {
position: absolute;
right: 5px;
bottom: 10px;
}
.wrap ol li {
height: 20px;
width: 20px;
background: #ccc;
border: solid 1px #666;
margin-left: 5px;
color: #000;
float: left;
line-height:inherit;
text-align: center;
cursor: pointer;
}
.wrap ol .on {
background: #E97305;
color: #fff;
}
</style>
<script type="text/javascript">
window.onload = function () {
var wrap = document.getElementById('wrap'),
pic = document.getElementById('pic').getElementsByTagName("li"),
list = document.getElementById('list').getElementsByTagName('li'),
index = 0,
timer = null;
timer = setInterval(autoPlay, 2000);
wrap.onmouseover = function () {
clearInterval(timer);
}
wrap.onmouseout = function () {
timer = setInterval(autoPlay, 2000);
}
for (var i = 0; i < list.length; i++) {
list[i].onmouseover = function () {
clearInterval(timer);
index = this.innerText - 1;
changePic(index);
};
};
function autoPlay() {
if (++index >= pic.length) index = 0;
changePic(index);
}
function changePic(curIndex) {
for (var i = 0; i < pic.length; ++i) {
pic[i].style.display = "none";
list[i].className = "";
}
pic[curIndex].style.display = "block";
list[curIndex].className = "on";
}
};
</script>
</head>
<body>
<div class="wrap" id='wrap'>
<ul id="pic">
<li><img src="Images/p1.webp" alt=""></li>
<li><img src="Images/p2.webp" alt=""></li>
<li><img src="Images/p3.webp" alt=""></li>
<li><img src="Images/p4.webp" alt=""></li>
</ul>
<ol id="list">
<li class="on">1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ol>
</div>
</body>
</html>
