update

mec-biz/src/main/java/com/ym/mec/biz/dal/dao/ClassGroupDao.java

@@ -519,7 +519,7 @@ public interface ClassGroupDao extends BaseDAO<Integer, ClassGroup> {
      * @param classGroupIdList
      * @return
      */
-    int batchUpdateStudentNumMinusOne(List<Integer> classGroupIdList);
+    int batchUpdateStudentNumMinusOne(@Param("classGroupIds") List<Integer> classGroupIdList);
 
     int updateTest(@Param("delFlag") YesOrNoEnum delFlag);
 }