Nuxt 项目中如何引入百度统计？

<!-- <script>
var _hmt = _hmt || [];
(function() {
  var hm = document.createElement("script");
  hm.src = "https://hm.baidu.com/hm.js?xxxxxxxxxxxxxxxxxxx";
  var s = document.getElementsByTagName("script")[0]; 
  s.parentNode.insertBefore(hm, s);
})();
</script> -->

// /plugins/baidu.js

export default ({app: {router}, store}) => {
  /* 每次路由变更时进行 pv 统计 */
  router.afterEach((to, from) => {
    /* 告诉增加一个 PV */
    try {
      window._hmt = window._hmt || []
      window._hmt.push(['_trackPageview', to.fullPath])
    } catch (e) {
    }
  })
}

plugins: [
  {
    src: '~/plugins/baidu'
  }
],

head: {
  // ...
  link: [
    // ...
  ],
  script: [
    { src: 'https://hm.baidu.com/hm.js?xxxxxxxxxxxxxxxxxxx' }
  ]
},