spa页面，不同组件按需引入js，aliplayer

 (function(d, s, id) {
      let js,
        fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s);
      js.id = id;
      js.src = "//g.alicdn.com/de/prismplayer/2.8.2/aliplayer-h5-min.js";
      fjs.parentNode.insertBefore(js, fjs);
    })(document, "script", "ali-jssdk");
    (function(d, s, id) {
      let js,
        fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s);
      js.id = id;
      js.src = "//player.alicdn.com/aliplayer/presentation/js/aliplayercomponents.min.js";
      fjs.parentNode.insertBefore(js, fjs);
    })(document, "script", "aliplayercomponents-jssdk");