<!DOCTYPE html><!--html5定义-->
<html lang="en">
<head>
<meta charset="utf-8">
<!--让IE使用最新的渲染风格-->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!--设置浏览的宽度 初始化比例为1-->
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap 101 Template标准模板</title>
<!-- Bootstrap 的CSS-->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for 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/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<h1>Hello, world!</h1>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<!--因为bootstrap的js是用jQuery开发，所以需要再引用bootstrap的js之前引用jQuery-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<!--bootstrap的js-->
<script src="js/bootstrap.min.js"></script>
</body>
</html>