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ClassContent/历届学生/front-end-team/每天课程/2022-04-03/tab.html
2024-09-27 02:06:13 +08:00

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<!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>tabs切换</title>
<style>
* {
margin: 0;
padding: 0;
list-style: none;
}
ul {
display: flex;
}
.tabs_title {
height: 45px;
align-items: center;
}
.tabs_title li {
margin: 0 10px;
}
.tabs_content li {
display: none;
}
.active_content {
display: block !important;
}
.active_title {
color: red;
}
</style>
</head>
<body>
<ul class="tabs_title">
<li class="active_title">首页</li>
<li>社会</li>
<li>财经</li>
<li>体育</li>
</ul>
<ul class="tabs_content">
<li class="active_content">首页 的内容</li>
<li>社会 的内容</li>
<li>财经 的内容</li>
<li>体育 的内容</li>
</ul>
</body>
<script>
var titleLi = _(".tabs_title li");
var contentLi = _(".tabs_content li");
console.log(titleLi);
// 为标题的li标签批量绑定点击事件
titleLi.forEach((v,i) => {
v.onclick = () => {
// 当你点击li的时候先删除所有li标签上的类名
titleLi.forEach((j,index) => {
j.classList.remove("active_title")
// 利用 标题遍历时候产生的下标,来关联 内容 数组+下标
contentLi[index].classList.remove("active_content")
});
// 然后再为你点击的那个li标签加激活样式的类名
v.classList.add("active_title");
//
contentLi[i].classList.add("active_content");
}
})
// 封装的方法用来获取所有li标签的数组
function _(className) {
return document.querySelectorAll(className)
}
</script>
</html>