fix：课酬

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

@@ -665,7 +665,7 @@ public class CourseScheduleTeacherSalaryServiceImpl extends BaseServiceImpl<Long
             }else if(YesOrNoEnum.NO.equals(teacherAttendance.getSignInStatus())){
                 int signCourseTimeBetweenSeconds = DateUtil.secondsBetween(teacherAttendance.getSignInTime(), courseSchedule.getStartClassTime());
                 float signCourseTimeBetween = (float)signCourseTimeBetweenSeconds/(float)60;
-                if(signCourseTimeBetween>=0&&signCourseTimeBetween<20){
+                if(signCourseTimeBetween>0&&signCourseTimeBetween<=20){
                     //未提前20分钟打卡扣除50元
                     deductCost = deductCost.add(new BigDecimal(50));
                     deductReasons.add("未提前20分钟打卡扣除50元");