代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
#nav {
120px;
height: 80px;
position: absolute;
right: 310px;
top: 60px;
z-index: 2;
}
#nav img {
100%;
height: 100%;
margin: 10px 0;
transition: 0.5s;
}
#nav img:hover {
border: 5px solid lightcoral;
box-sizing: border-box;
}
#pic {
1000px;
height: 600px;
position: relative;
margin: 50px auto;
}
#pic img {
100%;
height: 100%;
position: absolute;
display: none;
}
</style>
<script src="js/jquery.min.js"></script>
</head>
<body>
<div id="nav">
<img src="img/1.jpg" alt="1" />
<img src="img/2.jpg" alt="2" />
<img src="img/3.jpg" alt="3" />
<img src="img/4.jpg" alt="4" />
<img src="img/5.jpg" alt="5" />
</div>
<div id="pic">
<img src="img/1.jpg" alt="1" />
<img src="img/2.jpg" alt="2" />
<img src="img/3.jpg" alt="3" />
<img src="img/4.jpg" alt="4" />
<img src="img/5.jpg" alt="5" />
</div>
<script>
var count = 0; //记录图片是第几张
$("#pic img").eq(0).fadeIn(1); //初始图片显示状态，不写的话，第一张图片不会显示
$("#nav img").on("click", changePic); //给导航框小图片添加点击事件
var list = Array.from($("#nav img")); //将小图图片列表，放在数组中
function changePic(e) { //小图点击事件
var index = list.indexOf(this); //在数组中查找被点击的那一项索引
count = index; //当点击时将自动切换的索引换成点击的那个
$("#pic img:visible").fadeOut(500); //初始化所有图片，将显示的隐藏
$("#pic img").eq(index).fadeIn(500); //将被单击的显示
}
setInterval(autoMove, 3000); //每三秒切换一次
function autoMove() {
count++; //切换图片
if (count > 4) {
count = 0;
}
$("#pic img:visible").fadeOut(500); //初始化所有图片，将显示的隐藏
$("#pic img").eq(count).fadeIn(500); //将被单击的显示
}
</script>
</body>
</html>