文字超过1行、2行或者规定的行数，文字自动加省略号

最新推荐文章于 2022-05-05 14:43:38 发布

原创最新推荐文章于 2022-05-05 14:43:38 发布 · 559 阅读

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本文介绍了一种使用jQuery实现的CSS文本溢出自动添加省略号的方法。通过计算文本长度并调整显示内容，确保在固定高度的区块内文本能够适配并正确显示省略号。

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $(".figcaption").each(function (i) {
                var divH = $(this).height();
                var $p = $("p", $(this)).eq(0);
                while ($p.outerHeight() > divH) {
                    $p.text($p.text().replace(/(\s)*([a-zA-Z0-9]+|\W)(\.\.\.)?$/, "..."));
                };
            });
        });
    </script>
    <style>
        *{
            padding: 0px;
            margin: 0px;
        }
        .figcaption{
            width: 300px; 
            height: 50px; 
            /*根据父元素的高度来添加省略号
            *可以任意设置显示的行数
            */
            border: 1px solid red;
        }
    </style>
</head>
<body>

    <div class="figcaption">
        <p>
            You probably can't do it (currently?) without a fixed-width font like Courier. With
            a fixed-width font every letter occupies the same horizontal space, so you could
            probably count the letters and multiply the result with the current font size in
            ems or exs. Then you would just have to test how many letters fit on one line, and
            then break it up.</p>
    </div>
</body>
<script>

</script>
</html>