bootstrap中的模态框（modal，弹出层）_bootstrap为什么没显出模态框-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_44378954/article/details/88562693

bootstrap中的模态框（modal），不同于Tooltips，模态框以弹出对话框的形式出现，具有最小和最实用的功能集。

务必将模态框的 HTML 代码放在文档的最高层级内（也就是说，尽量作为 body 标签的直接子元素），以避免其他组件影响模态框的展现或功能。
默认的modal示例：

<!DOCTYPE html>  
<html lang="zh-CN">  
<head>  
    <meta charset="utf-8">  
    <meta http-equiv="X-UA-Compatible" content="IE=edge">  
    <meta name="viewport" content="width=device-width, initial-scale=1">  
    <title>Bootstrap Modal</title>  
    <link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">  
</head>  
<body>  
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">  
    Launch demo modal  
</button>  
  
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">  
    <div class="modal-dialog" role="document">  
        <div class="modal-content">  
            <div class="modal-header">  
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">  
                    <span aria-hidden="true">×</span>  
                </button>  
                <h4 class="modal-title" id="myModalLabel">Modal title</h4>  
            </div>  
            <div class="modal-body">  
                <p>One fine body…</p>  
            </div>  
            <div class="modal-footer">  
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>  
                <button type="button" class="btn btn-primary">Save</button>  
            </div>  
        </div>  
    </div>  
</div>  
  
<script src="http://cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>  
<script src="http://cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>  
</body>  
</html>