下载地址：Google-Code-Prettify
文章页面输入：

<script src="path-to-run_prettify.js/run_prettify.js?lang=css&amp;skin=sunburst"></script>

引用代码格式：<pre class="prettyprint linenums">引用代码</pre>

或 <code class="prettyprint">引用代码</code>

(function() {
    'use strict';
    setInterval(function(){
        var urlact = window.location.href;
        console.log(urlact);
        if(/watch\?v=/i.test(urlact)){
            console.log('inicio');
            var codevi = urlact.split('v=');
            var codevi = codevi[1].split('&');
            var div = '