|  | @@ -1238,9 +1238,11 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 | 
	
		
			
				|  |  |  			scheduleModifyLog.setCreateTime(now);
 | 
	
		
			
				|  |  |  			scheduleModifyLog.setOperatorId(operatorId);
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  | +			int singleClassMinutes = DateUtil.minutesBetween(existCours.getStartClassTime(), existCours.getEndClassTime());
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  |  			existCours.setClassDate(ac.getClassDate());
 | 
	
		
			
				|  |  |  			existCours.setStartClassTime(ac.getStartClassTime());
 | 
	
		
			
				|  |  | -			existCours.setEndClassTime(ac.getEndClassTime());
 | 
	
		
			
				|  |  | +			existCours.setEndClassTime(DateUtil.addMinutes(existCours.getStartClassTime(), singleClassMinutes));
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  |  			scheduleModifyLog.setCurrentCourseSchedule(JSONObject.toJSONString(existCours));
 | 
	
		
			
				|  |  |  			scheduleModifyLogs.add(scheduleModifyLog);
 |