bootstrap layui CDN

bootstrap3

<!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">

<!-- 可选的 Bootstrap 主题文件（一般不用引入） -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap-theme.min.css" integrity="sha384-6pzBo3FDv/PJ8r2KRkGHifhEocL+1X2rVCTTkUfGk7/0pbek5mMa1upzvWbrUbOZ" crossorigin="anonymous">

<!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>

bootstrap4

 <!-- Bootstrap 的 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" integrity="sha384-olOxEXxDwd20BlATUibkEnjPN3sVq2YWmYOnsMYutq7X8YcUdD6y/1I+f+ZOq/47" crossorigin="anonymous">
    <!-- JavaScript 文件是可选的。从以下两种建议中选择一个即可！ -->
    <!-- 选项 1：jQuery 和 Bootstrap 集成包（集成了 Popper） -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-NU/T4JKmgovMiPaK2GP9Y+TVBQxiaiYFJB6igFtfExinKlzVruIK6XtKqxCGXwCG" crossorigin="anonymous"></script>
    <!-- 选项 2：Popper 和 Bootstrap 的 JS 插件各自独立 -->
    <!--
    <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.min.js" integrity="sha384-qtoqgtVysUOibC/YeVgpOyLJpelAT1DHvg98mYHqq8ofXEmNEjaNqOZwnMKxlXCy" crossorigin="anonymous"></script>
    -->

layui jQuery

<script src="https://www.layuicdn.com/auto/layui.js" media="all"></script>
<script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js" media="all"></script>
<link rel="stylesheet" type="text/css" href="https://www.layuicdn.com/layui/css/layui.css" media="all" />

标签：jQuery,--,layui,CDN,bootstrap,bootstrap4
来源： https://blog.csdn.net/qq_45988890/article/details/117474117