切屏次数空值置为0

examcloud-core-oe-admin-api-provider/src/main/java/cn/com/qmth/examcloud/core/oe/admin/api/provider/SyncExamDataCloudServiceProvider.java

@@ -448,6 +448,9 @@ public class SyncExamDataCloudServiceProvider extends ControllerSupport implemen
         result.setEnterExamTime(examRecordData.getEnterExamTime());
         result.setContinuedTime(examRecordData.getContinuedTime());
         result.setSwitchScreenCount(examRecordData.getSwitchScreenCount());
+        if(result.getSwitchScreenCount()==null) {
+        	result.setSwitchScreenCount(0);
+        }
 
         return result;
     }