<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>demo</title>
<style>
#div2{
overflow: hidden;
white-space: nowrap;/*强制不换行*/
text-overflow:ellipsis;/*超出的部分用省略号代替*/
/* word-wrap: break-word; *//*当行达到最长时，将最后一个单词截断*/
}
</style>
</head>
<body>
<div id="div2" style="width: 500px;height: 100px;">hello world hello world hello world hello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello worldhello world hello world hello world</div>
</body>
<script async type="text/javascript">
// 填写JavaScript
</script>
</html>
