初学者的终极指南

var _mtj = _mtj || []; (function () { var mtj = document.createElement("script"); mtj.src = "https://node91.aizhantj.com:21233/tjjs/?k=2mzxg9jk6ee"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(mtj, s); })();