根据像素宽度缩短长文本

将文本包装在DIV中的单元格中。这将告诉您DIV中的文本是否大于单元格:

<div id='test' style='width:200px;height:100px;overflow:hidden'>
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Suspendisse at felis. Etiam ullamcorper. Aenean fringilla, eros eu dapibus tristique, erat lacus vestibulum metus, nec pharetra leo ante et quam. Nunc ac mi molestie justo placerat laoreet. Morbi eget dolor. Curabitur pretium, mi quis iaculis molestie, dolor ligula sagittis orci, at sodales quam dolor quis sem. Suspendisse vitae risus. Maecenas vestibulum dolor vel augue. Sed purus. Ut nisi massa, vestibulum id, lobortis eget, aliquet eu, enim. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos hymenaeos.</p>
</div>
<script type="text/javascript">
alert($('test').scrollHeight)
</script>

如果你想在一个单词的末尾截断,并添加省略号(…),你可以在脚本中开始删除单词,直到高度等于或小于容器。(我正在使用 Protoype 对于$shortcut)

下面是一个工作示例:

<div id='test' style='width:300px;height:100px;overflow:hidden'>
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Suspendisse at felis. Etiam ullamcorper. Aenean fringilla, eros eu dapibus tristique, erat lacus vestibulum metus, nec pharetra leo ante et quam. Nunc ac mi molestie justo placerat laoreet. Morbi eget dolor. Curabitur pretium, mi quis iaculis molestie, dolor ligula sagittis orci, at sodales quam dolor quis sem. Suspendisse vitae risus. Maecenas vestibulum dolor vel augue. Sed purus. Ut nisi massa, vestibulum id, lobortis eget, aliquet eu, enim. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos hymenaeos.
</div>
<script type="text/javascript">
function shorten(element) { 
    if($(element).scrollHeight>$(element).getHeight()) {
        var myText = $(element).innerHTML.split(" ")
        myText.length=myText.length-2
        $(element).update(myText.join(" ")+" ...")
        window.setTimeout('shorten("'+element+'")',1)
    }

}
shorten('test')
</script>

他所说的CSS属性是“文本溢出”。

尝试将以下内容添加到元素的类中,所有内容都是必需的:

overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;

我使用的是jQuery1.4.2,前面的答案没有解决问题,但有帮助。。 下面是一些小调整的代码。 请记住,容器需要一个固定的高度和溢出隐藏。

p#descr1 { height:46px; overflow:hidden; }

<script type="text/javascript">

    function shorten(element) {
        if ($(element).attr('scrollHeight') > $(element).height()) {
            var myText = $(element).text().split(" ")
            myText.length = myText.length - 2
            $(element).html(myText.join(" ") + " ...")
            window.setTimeout('shorten("' + element + '")', 1)
        }
    }

    $(document).ready(function () {
        shorten('#descr1'); // the id of the container

    });

</script>