在一篇文章中查找关键字，找到后高亮显示。
具体代码：
<html>
<head>
<title>Search</title>
<style type="text/css">
p { border:1px solid black;width:500px;padding:5px;}
.highlight { background-color:yellow; }
</style>
</head>
<body>
<form>
<p>
I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it.
</p>
<p>
I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it.
</p>
<p>
I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it.
</p>
<input type="text" id="text"/>
<input type="button" id="search" value="Search"/>
<input type="button" id="clear" value="Clear"/>
</form>
<script type="text/javascript" src="/UploadFiles/2021-04-02/jquery.js">
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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