fix:修复地理位置设备显示不全

@@ -319,8 +319,10 @@
           const isAlarmStatus = !!record.alarmStatus;
           if (isAlarmStatus) {
             const alarmStatusClassName = 'device-status__alarm';
-            const className = record.marker.Ec.getAttribute('class');
-            record.marker.Ec.setAttribute('class', `${className} ${alarmStatusClassName}`);
+            const className = record.marker?.Ec?.getAttribute('class');
+            if (record.marker?.Ec) {
+              record.marker?.Ec?.setAttribute('class', `${className} ${alarmStatusClassName}`);
+            }
           }
 
           //标注监听事件