jq简单实现选项卡效果

作者：鹏仔先生日期：2020-06-19 15:36:34 浏览：6613 分类：JavaScript

很简单的一个demo，平时经常用到，整理下，每次用直接复制粘贴挺香的。

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>JQ实现选项卡-</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.js"></script>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        body{
            padding: 300px;
            box-sizing: border-box;
        }
        .tab-box{
            width: 500px;
            display: flex;
            align-items: center;
        }
        .tab-box span{
            color: #fff;
            font-size: 16px;
            line-height: 30px;
            text-align: center;
            display: inline-block;
            width: 100px;
            background: #000;
            cursor: pointer;
        }
        .tab-box .active{
            background: skyblue;
        }
        .content div{
            display: none;
        }
        .content .active{
            display: block;
        }
    </style>
</head>
<body>
    <div class="tab-box">
        <span class="active">tab-1</span>
        <span>tab-2</span>
        <span>tab-3</span>
        <span>tab-4</span>
        <span>tab-5</span>
    </div>
    <div class="content">
        <div class="active">内容1</div>
        <div>内容2</div>
        <div>内容3</div>
        <div>内容4</div>
        <div>内容5</div>
    </div>
</body>
</html>

<script>
    $(".tab-box span").click(function(){
        // 给当前的添加类名，并清除同级其他的类名
        $(this).addClass("active").siblings().removeClass("active");
        // 获取当前点击的索引
        var index = $(this).index();
        // 对应索引对应的添加类名active，并清楚同级其他的类名
        $(this).parent().siblings().children().eq(index).addClass("active").siblings().removeClass("active");
    })
</script>