直接上代码，复制粘贴就可以跑，注意最外面有一层$(function(){
}) 包住的。jQuery代码在<script></script>里面，要把注销去掉。一个一个看效果
+Tenus One <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags must come first in the head; any other head content must come after these tags -->
<title>Bootstrap 101 Template</title>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<style type="text/css">
.jumbotron {text-align: center;}
</style>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn‘t work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<div class="jumbotron">
<h1>Let‘s have Fun</h1>
<button type="button" id="btn1" class="btn btn-default">#btn1</button>
<button type="button" id="btn1" class="btn btn-default">#btn2</button>
<button type="button" id="btn1" class="btn btn-default">#btn3</button>
<button type="button" id="btn1" class="btn btn-default">#btn4</button>
</div>
<div class="col-xs-3">
<div id="panel1" class="panel panel-primary">
<div class="panel-heading">
#panel1
</div>
<div class="panel-body"> Contet
</div>
</div>
</div>
<div class="col-xs-3">
<div id="panel2" class="panel panel-primary">
<div class="panel-heading">
#panel2
</div>
<div class="panel-body"> Contet
</div>
</div>
</div>
<div class="col-xs-3">
<div id="panel3" class="panel panel-primary">
<div class="panel-heading">
#panel3
</div>
<div class="panel-body"> Contet
</div>
</div>
</div>
<div class="col-xs-3">
<div id="panel4" class="panel panel-primary">
<div class="panel-heading">
#panel4
</div>
<div class="panel-body"> Contet
</div>
</div>
</div>
<!-- jQuery (necessary for Bootstrap‘s JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<!-- <script src="js/bootstrap.min.js"> -->
<script type="text/javascript">
$(function(){
// $("#btn1").on(‘click‘,function(){
// $("#panel1").slideToggle(200);
// }); 点击按钮下面面板隐藏
// $("#panel1").on(‘click‘,function(){
// $("#panel1").fadeOut(200);
// }); 自己点击自己淡出
// $("#btn1").on(‘mouseover‘,function(){
// $("#panel1").fadeToggle(200);
// });
// 点击事件click改成了鼠标移入mouseover事件
// $("#btn1").on(‘click‘,function(){
// $("#panel1 .panel-body").html(‘my is new panel‘);
// });
// 点击click事件通过html(),在.panel-body类的html标签插入新的内容
// $("#btn1").on(‘click‘,function(){
// $("#panel1").toggle();
// });
// 这个toggle相当于show跟hide的结合，点击一次显示再点击隐藏
})
</script>
</body>
</html>
Jquery基础，点击事件click,鼠标移入事件mouseover。通过事件改变DOM结构
原文：https://www.cnblogs.com/hechunfeng/p/15249684.html