前端js常用CDN

http://www.bootcdn.cn

jquery
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.min.js"></script>

bootstrap 
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<link href="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.6/css/bootstrap.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>

font-awesome
<link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">

vue 2
<script src="https://cdn.bootcss.com/vue/2.3.4/vue.min.js"></script>

zui 
<link rel="stylesheet" href="https://cdn.bootcss.com/zui/1.7.0/css/zui.min.css">
<script src="https://cdn.bootcss.com/zui/1.7.0/lib/jquery/jquery.js"></script>
<script src="https://cdn.bootcss.com/zui/1.7.0/js/zui.min.js"></script>

html5shiv
<script src="https://cdn.bootcss.com/html5shiv/r29/html5.min.js"></script>