将下列代码放进底部文件:

<script type="text/javascript">
$(document).on('pjax:complete', function() {
if (typeof Prism !== 'undefined') {
var pres = document.getElementsByTagName('pre');
            for (var i = 0; i < pres.length; i++){
                if (pres[i].getElementsByTagName('code').length > 0)
                    pres[i].className  = 'line-numbers';}
 Prism.highlightAll(true,null);}
 });
 </script>