highlight.js代码风格引入方法

<link href="https://cdn.bootcss.com/highlight.js/9.15.10/styles/darcula.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/highlight.js/9.15.10/highlight.min.js"></script>
    <script>
        hljs.initHighlightingOnLoad();
    </script>