<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.phpstudy.net/" />
<title>phpstudy</title>
<style type="text/css">
div{
height:150px;
width:150px;
background-color:green;
margin-top:10px;
}
</style>
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<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$(".mydiv").hide();
})
})
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<body>
<div class="mydiv"></div>
<div class="anotherdiv"></div>
<button>点击隐藏div元素</button>
</body>
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