模态窗口的使用：
1.触发窗口打开
2.窗口打开后是否可以继续操作页面上的内容
3.关闭窗口
有2种方式来触发模态窗口的显示
通过data属性
<!-- Button trigger modal 模态框的触发按钮,通过data-toggle="modal" data-target="#myModal"实现与模态框的绑定-->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Launch modal by CSS
</button>
通过JavaScript调用
<script type="text/javascript">function showModal() {$("#myModal").modal({backdrop: 'static',/*背景变暗，且关闭模态窗体后才能操作页面上的内容*/});}
</script>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Default buttons from Bootstrap 3</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap -->
<link href="../../bootstrap-3.0.0/dist/css/bootstrap.min.css"rel="stylesheet" media="screen">
<style>
body {padding: 50px; /*边距*/
}
</style>
<script type="text/javascript">function showModal() {$("#myModal").modal({backdrop: 'static',/*背景变暗，且关闭模态窗体后才能操作页面上的内容*/});}
</script>
<!-- HTML5 Shim and Respond.js 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/libs/html5shiv/3.7.0/html5shiv.js"></script><script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script><![endif]-->
</head>
<body><!-- 模态对话框 --><!-- 通过Data属性触发模态窗口--><button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Launch modal by CSS</button><!-- 通过javascript触发模态窗口--><button class="btn btn-success btn-lg" οnclick="showModal()">Launch modal by js</button><!-- Modal --><div class="modal fade in" 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="myModalLabel">Modal Heading</h4></div><div class="modal-body"><h4>Text in a modal</h4><p>Duis mollis, est non commodo luctus, nisi erat porttitor ligula.</p><h4>Popover in a modal</h4><p>...</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 changes</button></div></div><!-- /.modal-content --></div><!-- /.modal-dialog --></div><!-- /.modal --><!-- jQuery (necessary for Bootstrap's JavaScript plugins) --><script src="../../bootstrap-3.0.0/assets/js/jquery.js"></script><!-- Include all compiled plugins (below), or include individual files as needed --><script src="../../bootstrap-3.0.0/dist/js/bootstrap.min.js"></script>
</body>
</html>