function loadLib(url) {        let script = document.createElement("script");        script.async = false;        script.src = url;        document.body.appendChild(script);      }      window.screenOrientation = "sensor_landscape"; //限制横屏展示      //-----libs-begin-----      loadLib("xxxx.js");      loadLib("xxxx.js");      loadLib("xxxx.js");      //-----libs-end-------      loadLib("xxxx.js");