常用CDN加速服务

Bootstrap

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" >

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

jQuery

<script src="https://code.jquery.com/jquery-2.1.1.min.j"></script>