feat：乐团改造

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

@@ -5261,7 +5261,7 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 			return;
 		}
 		List<CourseSchedule> mainCourses = courseScheduleDao.findByCourseScheduleIds(new ArrayList<>(newCourseIds));
-//		mainCourses.stream().collect()
+		Map<Long, CourseSchedule> idCourseMap = mainCourses.stream().collect(Collectors.toMap(CourseSchedule::getId, c -> c, (c1, c2) -> c1));
 	}
 
 	@Override