课酬导出逻辑调整

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

@@ -1039,7 +1039,7 @@ public class CourseScheduleTeacherSalaryServiceImpl extends BaseServiceImpl<Long
             }else{
                 exportTeacherSalaryDto.setCourseIncome(courseIncomeMap.get(exportTeacherSalaryDto.getCourseScheduleId()));
             }
-            exportTeacherSalaryDto.setStudentNum(courseStudentNumMap.get(exportTeacherSalaryDto.getCourseScheduleId()));
+            exportTeacherSalaryDto.setStudentNum(courseStudentNumMap.getOrDefault(exportTeacherSalaryDto.getCourseScheduleId(),0));
         }
 
         exportTeacherSalaryDtos.sort(Comparator.comparing(ExportTeacherSalaryDto::getTeacherId));