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<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">
<!-- Bootstrap -->
<link href="__STATIC__/插件/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet">
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<script src="__STATIC__/插件/jquery-3.3.1.min.js"></script>
<script src="__STATIC__/插件/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
<title>bootstrap</title>
<style>
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<!-- 1，用 class="btn-group"将多个按钮打包在一个按钮组中进行管理 -->
<div class="btn-group" aria-label="player control" >
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-backward"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-play"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-forward"></span></button>
</div>
<hr>
<!-- 2,将多个按钮组 组合在一起，组成一个工具栏aria-label="player control" -->
<div aria-label="player control" class="btn-toolbar">
<!-- btn-group-lg:大号按钮 -->
<div class="btn-group btn-group-lg" aria-label="player control" >
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-backward"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-play"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-forward"></span></button>
</div>
<div class="btn-group btn-group-lg" aria-label="player control" >
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-backward"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-play"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-forward"></span></button>
</div>
<div class="btn-group btn-group-lg" aria-label="player control" >
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-backward"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-play"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-forward"></span></button>
</div>
</div>
<hr>
<!-- 3，将多种类型的组件，嵌套到按钮组中 -->
<div aria-label="player control" class="btn-toolbar">
<div class="btn-group" aria-label="player control">
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-backward"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-play"></span></button>
<button type="button" class="btn btn-info"><span class="glyphicon glyphicon-step-forward"></span></button>
</div>
<div class="btn-group" aria-label="player control">
<div class="dropdown"><!-- dropdowm下拉菜单 -->
<!-- aria-haspopup="true":允许鼠标悬停
aria-expanded="true" ：默认为展开状态 -->
<button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true" id="dropdownMenu1">新闻动态
<span class="caret"></span><!-- 倒三角符号 -->
</button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
<li><a href="#">国内新闻</a></li>
<li><a href="#">亚洲新闻</a></li>
<li><a href="#">地球新闻</a></li>
<li role="separator" class="divider"></li>
<li class="disabled"><a href="#">公司新闻</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
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