改变 textOverflow 属性 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <style>
    #myDIV {
      border: 1px solid black;
      background-color: lightblue;
      width: 175px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: visible;
    }
  </style>
</head>

<body>
  <p>点击“尝试一下”按钮，改变 DIV 元素的 text-overflow 属性：</p>
  <button onclick="myFunction()">尝试一下</button>
  <div id="myDIV">
    Lorem ipsum dolor sit amet, consectetuer adipiscing elit,
    <br> sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.<br> Ut wisi enim ad minim veniam,<br> quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
  </div>
  <script>
    function myFunction() {
      document.getElementById("myDIV").style.textOverflow = "ellipsis";
    }
  </script>

</body>
</html>
        