update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/StudentRegistrationServiceImpl.java

@@ -633,7 +633,7 @@ public class StudentRegistrationServiceImpl extends BaseServiceImpl<Long, Studen
         }
         Integer highClassId = studentAddDto.getHighClassId();
         if(highClassId != null){
-            addStudent(mixClassId,userId,nowDate,courseScheduleList);
+            addStudent(highClassId,userId,nowDate,courseScheduleList);
         }
         String snapClassIds = studentAddDto.getSnapClassIds();
         if(StringUtils.isNotEmpty(snapClassIds)){