1         let deviceId =""
 2         if (window.plus) {
 3           deviceId = plus.device.uuid;
 4         } else {
 5           // 兼容老版本的plusready事件 
 6           document.addEventListener(
 7             "plusready",
 8             function () {
 9               deviceId = plus.device.uuid;
10             },
11             false
12           );
13         }