通过 js 代码命令行，document 输出的方式加载js

<script type="text/javascript">document.write("<sc" + "ript type=" + "'tex" + "t/jav" + "ascript'" + " src='http://pv.xxxx.c" + "om/js/trackr.js?rc="+ parseInt(new Date/43200000) +"&v=2&lid=361572135880'>" + "<" + "/sc" + "ript>");</script>

蛮淫贱的。