CDN 5.2.3
<!–核心css文件 bootstrap.min.css–>
<link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.2.3/css/bootstrap.min.css" rel="stylesheet">
<!–核心css文件 bootstrap.css–>
<link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.2.3/css/bootstrap.css.map" rel="stylesheet">
<!–核心文件jquery–>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.4/jquery.js"></script>