bootsrap开发button按钮组例证
<html lang="en">
<head>
<title>按钮</title>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<link href="../book/css/bootstrap.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="btn-toolbar">
<div class="btn-group">
<a href="#" class="btn btn-default">1</a>
<a href="#" class="btn btn-default">2</a>
<a href="#" class="btn btn-default">3</a>
<a href="#" class="btn btn-default">4</a>
</div>
<div class="btn-group">
<a href="#" class="btn btn-default">5</a>
<a href="#" class="btn btn-default">6</a>
<a href="#" class="btn btn-default">7</a>
</div>
<div class="btn-group">
<a href="#" class="btn btn-default">8</a>
<a href="#" class="btn btn-default">9</a>
</div>
</div>
</body>
</html>
效果：