想要的效果图：
直接上代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box {
width: 500px;
height: 300px;
/* border: 1px solid #ccc; */
margin: 50px auto;
}
span {
width: 80px;
height: 30px;
border: 1px solid #ccc;
display: inline-block;
text-align: center;
line-height: 30px;
}
.body {
margin-top: 5px;
width: 450px;
border: 1px solid #ccc;
height: 250px;
background: #eee;
}
.current {
color: red;
background: #555;
}
.body div {
display: none;
text-align: center;
line-height: 250px;
}
.body .active {
display: block
}
</style>
</head>
<body>
<div class="box">
<div class="header">
<span class="current">关注</span>
<span>推荐</span>
<span>热点</span>
<span>本地</span>
<span>段子</span>
</div>
<div class="body">
<div class="active">关注：早上吃什么？</div>
<div>推荐：中午吃什么？</div>
<div>热点：晚饭吃什么？</div>
<div>本地：宵夜吃什么？</div>
<div>段子：半夜吃什么？</div>
</div>
</div>
<script>
var oSpan = document.querySelectorAll('span')
var oDiv = document.querySelector('.body').children
for (let i = 0; i < oSpan.length; i++) {
oSpan[i].index = i
console.log(oSpan[i].index);
oSpan[i].onclick = function () {
for (let k = 0; k < oSpan.length; k++) {
oSpan[k].classList.remove('current')
}
this.classList.add('current')
console.log(oSpan[i].index);
for (let k = 0; k < oSpan.length; k++) {
oDiv[k].classList.remove('active')
}
oDiv[this.index].classList.add('active')
}
}
</script>
</body>
</html>
