update

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

@@ -1722,7 +1722,7 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
             boolean courseTimeIsChange = false;
             int newCourseTime = DateUtil.minutesBetween(newCourseSchedule.getStartClassTime(), newCourseSchedule.getEndClassTime());
             int oldCourseTime = DateUtil.minutesBetween(oldCourseSchedule.getStartClassTime(), oldCourseSchedule.getEndClassTime());
-            if(newCourseTime < 0){
+            if(oldCourseTime < 0){
                 throw new BizException("单节课时不允许跨天");
             }
             if (newCourseTime != oldCourseTime) {