vue中如何添加百度统计代码

var _hmt = _hmt || [];
window._hmt = _hmt; // 必须把_hmt挂载到window下，否则找不到
 (function () {
  var hm = document.createElement("script");
  hm.src = "https://hm.baidu./hm.js?"+ 百度站点id;
  var s = document.getElementsByTagName("script")[0];
  s.parentNode.insertBefore(hm, s);
 })();

router.beforeEach((to, from, next) => {
 if (_hmt) {
  if (to.path) {
   _hmt.push(['_trackPageview', '/#' + to.fullPath]);
  }
 }
 next();
});