jq table 自动滚动

<html>
<head>
    <meta charset="UTF-8">
    <style>
        div {
            width: 736px;
            overflow: hidden
        }

        table {
            width: 756px;
        }

        thead tr {
            display: block;
        }

        tbody {
            display: block;
            height: 100px;
            overflow: auto;
        }

        thead th {
            width: 200px;
            text-align: center;
        }

        tbody td {
            width: 200px;
            text-align: center;
        }
    </style>
    <script src="js/jquery.min.js"></script>
</head>
<body>
<div>
    <table>
        <thead>
        <tr>
            <th>Header 1</th>
            <th>Header 2</th>
            <th>Header 3</th>
        </tr>
        </thead>
        <tbody>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        <tr>
            <td>Cell Content 1</td>
            <td>Cell Content 2</td>
            <td>Cell Content 3</td>
        </tr>
        </tbody>
    </table>
</div>
<script>//滚动条到底时的高度,等于0时说明没有滚动条
    var scrollHeight = $('tbody')[0].scrollHeight - $('tbody').innerHeight()

    $(function () {
        if (scrollHeight > 0) {
            interval = setInterval(MoveScroll, 50)
        }
    })

    $('tbody').hover(function () {
        if (scrollHeight > 0) {
            clearInterval(interval)
        }
    }, function () {
        if (scrollHeight > 0) {
            clearInterval(interval)
            interval = setInterval(MoveScroll, 50)
        }
    })

    function MoveScroll() {
        var scroll = $('tbody').scrollTop()
        //滚动条到底时从头重新滚动
        if (scroll >= scrollHeight) {
            scroll = 0;
        } else {
            scroll++
        }
        $('tbody').scrollTop(scroll)
    }
</script>
</body>
</html>
原文地址:https://www.cnblogs.com/zhouyg2017/p/14241698.html