fix

zhongzheng-system/src/main/java/com/zhongzheng/modules/grade/service/impl/ClassGradeServiceImpl.java

@@ -986,7 +986,7 @@ public class ClassGradeServiceImpl extends ServiceImpl<ClassGradeMapper, ClassGr
             SubjectStudyRecordQueryBo subjectStudyRecordQueryBo = new SubjectStudyRecordQueryBo();
             subjectStudyRecordQueryBo.setGoodsId(classGradeStudentVo.getGoodsId());
             subjectStudyRecordQueryBo.setUserId(classGradeStudentVo.getUserId());
-            subjectStudyRecordQueryBo.setGradeId(bo.getGradeId());
+            subjectStudyRecordQueryBo.setGradeId(classGradeStudentVo.getGradeId());
             subjectStudyRecordQueryBo.setOrderGoodsId(classGradeStudentVo.getOrderGoodsId());
             List<SubjectStudyRecordVo> subjectStudyRecordVos = iUserStudyRecordService.listSubject(subjectStudyRecordQueryBo);
             for (SubjectStudyRecordVo subjectStudyRecordVo : subjectStudyRecordVos) {