代码拉取完成,页面将自动刷新
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
/* 初始化 */
* {
padding: 0;
margin: 0;
}
li {
list-style-type: none;
}
.shop-box {
width: 360px;
border: 1px solid #eee;
margin: auto;
}
.big-img>img {
width: 100%;
}
.small-img-list {
display: flex;
}
.small-img-list li {
width: 20%;
}
/* 小图片的边框 */
.cur-img {
border: 2.5px solid red;
}
</style>
</head>
<body>
<div class="shop-box">
<div class="big-img">
<img src="https://img14.360buyimg.com/n5/jfs/t1/38555/39/19176/66455/6335ccfcE492fb9a6/729aa1905c16c873.jpg"
alt="">
</div>
<ul class="small-img-list">
<li class="cur-img"><img
src="https://img14.360buyimg.com/n5/jfs/t1/38555/39/19176/66455/6335ccfcE492fb9a6/729aa1905c16c873.jpg.avif"
alt=""></li>
<li><img src="https://img14.360buyimg.com/n5/jfs/t1/49010/21/18369/151736/628ddbe8E5011147a/7811cbf26bf0ab1a.jpg.avif"
alt=""></li>
<li><img src="https://img14.360buyimg.com/n5/jfs/t1/61224/5/18019/60823/628ddbb2E72a14ecf/1b827f67b2b2c4f2.jpg.avif"
alt=""></li>
<li><img src="https://img14.360buyimg.com/n5/jfs/t1/146777/5/27557/100428/628ddbb3Eced4b70a/784a2aaa54bd9417.jpg.avif"
alt=""></li>
<li><img src="https://img14.360buyimg.com/n5/jfs/t1/38555/39/19176/66455/6335ccfcE492fb9a6/729aa1905c16c873.jpg.avif"
alt=""></li>
</ul>
</div>
<script>
// 鼠标移到哪个图片就改变大图片
// 获取li
let lis = document.querySelectorAll('li');
// 获取大图片
let bigImg = document.querySelector('.big-img>img');
// 排他思想
function clearBorder() {
for (let i = 0; i < lis.length; i++) {
const element = lis[i];
element.className = ''
}
}
// 事件处理程序
function mouseHover() {
// 获取当前li的里面的图片
let curImg = this.querySelector('img');
// 大图的src等于当前图片的src
bigImg.src = curImg.src;
// 先清除再添加
clearBorder();
this.className = 'cur-img'
}
for (let i = 0; i < lis.length; i++) {
const element = lis[i];
// 鼠标移上事件
element.addEventListener('mousemove', mouseHover);
}
</script>
</body>
</html>
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