content="http://localhost:12132/desc/installation.html" />
<meta property="og:site_name" content="DESC" />
<script type="application/ld+json">
{"@type":"WebPage","url":"http://localhost:12132/desc/installation.html","headline":"Installation","@context":"http://schema.org"}</script>
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<link rel="stylesheet" href="/desc/assets/main.css"><link type="application/atom+xml" rel="alternate" href="http://localhost:12132/desc/feed.xml" title="DESC" /></head>
<!-- 自己插入的-->
<head>
 