update

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

@@ -1017,7 +1017,10 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
             String[] studentNums = classGroupStudentMapperDao.findStudentNumByClassGroupId(classGroupId);
             teacherClassHeadInfo.setStudentNames(StringUtils.join(studentNums, ","));
         }
-
+        if (classGroup.getType() == ClassGroupTypeEnum.PRACTICE) {
+            String[] studentNums = classGroupStudentMapperDao.findStudentNumByClassGroupId(classGroupId);
+            teacherClassHeadInfo.setStudentNames(StringUtils.join(studentNums, ","));
+        }
         return teacherClassHeadInfo;
     }