heihei12305

getDevice = function() {
      var device = {};
      var ua = navigator.userAgent;
      var android = ua.match(/(Android);?[\s\/]+([\d.]+)?/);
      var ipad = ua.match(/(iPad).*OS\s([\d_]+)/);
      var ipod = ua.match(/(iPod)(.*OS\s([\d_]+))?/);
      var iphone = !ipad && ua.match(/(iPhone\sOS)\s([\d_]+)/);
      var mobileInfo = ua.match(/Android\s[\S\s]+Build\//);
      device.ios = device.android = device.iphone = device.ipad = device.androidChrome = false;
      device.isWeixin = /MicroMessenger/i.test(ua);
      device.os = "web";
      device.deviceName = "PC";
      // Android
      if (android) {
        device.os = 'android';
        device.osVersion = android[2];
        device.android = true;
        device.androidChrome = ua.toLowerCase().indexOf('chrome') >= 0;
      }
      if (ipad || iphone || ipod) {
        device.os = 'ios';
        device.ios = true;
      }
      // iOS
      if (iphone && !ipod) {
        device.osVersion = iphone[2].replace(/_/g, '.');
        device.iphone = true;
      }
      if (ipad) {
        device.osVersion = ipad[2].replace(/_/g, '.');
        device.ipad = true;
      }
      if (ipod) {
        device.osVersion = ipod[3] ? ipod[3].replace(/_/g, '.') : null;
        device.iphone = true;
      }
      // iOS 8+ changed UA
      if (device.ios && device.osVersion && ua.indexOf('Version/') >= 0) {
        if (device.osVersion.split('.')[0] === '10') {
          device.osVersion = ua.toLowerCase().split('version/')[1].split(' ')[0];
        }
      }

      // 如果是ios, deviceName 就设置为iphone，根据分辨率区别型号
      if (device.iphone) {
        device.deviceName = "iphone";
        var screenWidth = window.screen.width;
        var screenHeight = window.screen.height;
        if (screenWidth === 320 && screenHeight === 480) {
          device.deviceName = "iphone 4";
        } else if (screenWidth === 320 && screenHeight === 568) {
          device.deviceName = "iphone 5/SE";
        } else if (screenWidth === 375 && screenHeight === 667) {
          device.deviceName = "iphone 6/7/8";
        } else if (screenWidth === 414 && screenHeight === 736) {
          device.deviceName = "iphone 6/7/8 Plus";
        } else if (screenWidth === 375 && screenHeight === 812) {
          device.deviceName = "iphone X/S/Max";
        }
      } else if (device.ipad) {
        device.deviceName = "ipad";
      } else if (mobileInfo) {
        var info = mobileInfo[0];
        var deviceName = info.split(';')[1].replace(/Build\//g, "");
        device.deviceName = deviceName.replace(/(^\s*)|(\s*$)/g, "");
      }
      // 浏览器模式, 获取浏览器信息
      // TODO 需要补充更多的浏览器类型进来
      if (ua.indexOf("Mobile") == -1) {
        var agent = navigator.userAgent.toLowerCase() ;
        var regStr_ie = /msie [\d.]+;/gi ;
        var regStr_ff = /firefox\/[\d.]+/gi
        var regStr_chrome = /chrome\/[\d.]+/gi ;
        var regStr_saf = /safari\/[\d.]+/gi ;

        device.browserName = '未知';
        //IE
        if(agent.indexOf("msie") > 0) {
          var browserInfo = agent.match(regStr_ie)[0];
          device.browserName = browserInfo.split('/')[0];
          device.browserVersion = browserInfo.split('/')[1];
        }
        //firefox
        if(agent.indexOf("firefox") > 0) {
          var browserInfo = agent.match(regStr_ff)[0];
          device.browserName = browserInfo.split('/')[0];
          device.browserVersion = browserInfo.split('/')[1];
        }
        //Safari
        if(agent.indexOf("safari") > 0 && agent.indexOf("chrome") < 0) {
          var browserInfo = agent.match(regStr_saf)[0];
          device.browserName = browserInfo.split('/')[0];
          device.browserVersion = browserInfo.split('/')[1];
        }
        //Chrome
        if(agent.indexOf("chrome") > 0) {
          var browserInfo = agent.match(regStr_chrome)[0];
          device.browserName = browserInfo.split('/')[0];
          device.browserVersion = browserInfo.split('/')[1];
        }
      }
      // Webview
      device.webView = (iphone || ipad || ipod) && ua.match(/.*AppleWebKit(?!.*Safari)/i);

      // Export object
      return device;
    }
	```