效果如下:
完整代码:
<!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">
<style>
.tab ul {
list-style: none;
display: flex;
width: 400px;
height: 50px;
margin-bottom: 0;
}
li {
flex: 1;
border: 1px solid #000;
text-align: center;
line-height: 50px;
font-weight: 700;
font-size: 20px;
}
.current {
background-color: #ccc;
}
.con {
width: 400px;
height: 300px;
margin-left: 40px;
}
.con img {
display: none;
width: 100%;
}
.con img:nth-child(1) {
display: block;
}
</style>
<title>Document</title>
</head>
<body>
<div class="tab">
<ul>
<li class="current">绿</li>
<li>蓝</li>
<li>红</li>
<li>紫</li>
</ul>
<div class="con">
<img src="img/1.jpg" alt="">
<img src="img/2.jpg" alt="">
<img src="img/3.jpg" alt="">
<img src="img/4.jpg" alt="">
</div>
</div>
<script>
let tab = document.querySelector('.tab');
let con = tab.querySelector('.con');
let ul = tab.querySelector('ul');
let lis = ul.querySelectorAll('li');
let imgs = con.querySelectorAll('img');
for (let i = 0; i < lis.length; i++) {
lis[i].setAttribute('data-index', i);
lis[i].addEventListener('click', function () {
let index = this.getAttribute('data-index');
for (let i = 0; i < lis.length; i++) {
lis[i].className = '';
imgs[i].style.display = 'none';
}
this.className = 'current';
imgs[index].style.display = 'block';
})
}
</script>
</body>
</html>