模态框比较常用，整理一下
<html lang="en">
<head>
<title>Document</title>
<!-- 1、引入必要的文件 -->
<link rel="stylesheet" href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<h2>创建模态框（Modal）</h2>
<!-- 2、按钮触发模态框 -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">点击弹出模态框</button>
<!-- 3、模态框（Modal） -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalTitle">模态框（Modal）标题</h4>
</div>
<div class="modal-body" id="myModalBody">在这里添加一些文本</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
<a type="button" href="https://www.baidu.com/" class="btn btn-primary" id="myModalAction">确定</a>
</div>
</div>
</div>
</div>
</body>
</html>
