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引用代码
<link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/highlight.js/11.9.0/styles/default.min.css">
<script src="https://cdn.bootcdn.net/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>资源地址
https://cdn.bootcdn.net/ajax/libs/highlight.js/11.9.0/highlight.min.js