cdn集合常用网站： http://www.jq22.com/cdn/ https://www.bootcdn.cn/ https://cdn.baomitu.com/
常用jQuery
<script src="https://lib.baomitu.com/jquery/3.4.1/jquery.min.js"></script> <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>常用bootstrop
<link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.bootcss.com/twitter-bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.bootcss.com/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> <script src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>其它
<script src="https://lib.baomitu.com/zepto/1.2.0/zepto.min.js"></script> <script src="https://cdn.bootcss.com/vue/2.6.10/vue.min.js"></script> <script src="https://cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.min.js"></script> <link href="https://cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.min.css" rel="stylesheet"> <script src="https://cdn.bootcss.com/mui/3.7.1/js/mui.min.js"></script> <link href="https://cdn.bootcss.com/mui/3.7.1/css/mui.min.css" rel="stylesheet">