tab栏切换-优快云博客

本文链接：https://blog.youkuaiyun.com/CLhen/article/details/125507017

<head>
    <style>
        ul {
            width: 500px;
            height: 50px;
            list-style: none;
            display: flex;
        }

        ul>li {
            padding: 0 20px;
            line-height: 50px;
            text-align: center;
            cursor: pointer;
        }

        .box {
            width: 500px;
            margin: 0 auto;
        }

        .point {
            background-color: #ffcc00;
            color: aliceblue;
        }

        .item {
            display: none;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="head">
            <ul>
                <li class="point">第一个</li>
                <li>第二个</li>
                <li>第三个</li>
                <li>第四个</li>
                <li>第五个</li>
            </ul>
        </div>
        <div class="content">
            <div class="item" style="display: block;">
                这是第一个的内容
            </div>
            <div class="item">
                这是第二个的内容
            </div>
            <div class="item">
                这是第三个的内容
            </div>
            <div class="item">
                这是第四个的内容
            </div>
            <div class="item">
                这是第五个的内容
            </div>
        </div>
    </div>
    <script>
        var tab_li = document.querySelector('.head');
        var lis = tab_li.querySelectorAll('li');
        var items = document.querySelectorAll('.item');
        for (var i = 0; i < lis.length; i++) {
            lis[i].setAttribute('index', i);
            lis[i].onclick = function () {
                for (var i = 0; i < lis.length; i++) {
                    lis[i].className = '';
                }
                this.className = 'point';
                var index = this.getAttribute('index')
                console.log(index);
                console.log(items);
                for (var i = 0; i < items.length; i++) {
                    items[i].style.display = 'none'
                }
                items[index].style.display = 'block';
            }
        }
    </script>
</body>