fix

stmms-web/src/main/java/cn/com/qmth/stmms/api/controller/ExamStudentController.java

@@ -312,9 +312,9 @@ public class ExamStudentController extends BaseApiController {
                             detail.accumulate("subNumber", question.getSubNumber());
                             detail.accumulate("score", item.getScore());
                             detail.accumulate("marker",
-                                    getMarkerNames(student, question.getMainNumber()).get("markerNames"));
+                                    getMarkerNames(student, question.getGroupNumber()).get("markerNames"));
                             detail.accumulate("header",
-                                    getMarkerNames(student, question.getMainNumber()).get("headerNames"));
+                                    getMarkerNames(student, question.getGroupNumber()).get("headerNames"));
                             subjective.add(detail);
                         }
                         obj.accumulate("subjectiveScoreDetail", subjective);