客户端版本低，则会跳转下载最新版本！   /*      *跳转场景方法      */     loadScene_Function: function () {         let path = this.playerInfo.loginIp + "/checkVersion";         let instance = this;         let xhr = new XMLHttpRequest();         xhr.onreadystatechange = () => {             if (xhr.readyState === 4 && xhr.status === 200) {                 if (!!xhr.response) {                     try {                         const response = JSON.parse(xhr.response);                         if (response.version == instance.playerInfo.versionCode) {                             // progressUI                             cc.director.preloadScene('LobbyMain', (cc, tc, item) => {                                 this.progressUI.progress = cc / tc;                             }, () => {                                 cc.director.loadScene("LobbyMain");                             })

                        } else {                             let board = cc.find('Canvas/com_NewVersion');                             board.active = true;                             window.versionUrl = response.url;                         }                     } catch (e) {                         console.error('json解析错误');                     }                 }             }         }         xhr.open("post", path);         xhr.send();   此代码来自完整的电玩游戏项目，需要了解更详细代码，请加 QQ ： 2307844569    扫码体验游戏：

 

点击链接体验游戏：

http://game.cdn.bogolo.cn/dwc_jieji_h5/server164/