Merge branch 'master_saas' of http://git.dayaedu.com/yonge/mec into master_saas

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

@@ -25,7 +25,7 @@ public interface CourseScheduleConvertDao {
     * @author zx
     * @date 2022/9/21 11:40
     */
-    int checkStudentCourseNum(@Param("courseIds") String courseIds, @Param("courseNum") int courseNum);
+    Integer checkStudentCourseNum(@Param("courseIds") String courseIds, @Param("courseNum") int courseNum);
 
     /**
     * @description: 获取可转换课程时长，学员数量，课程数量