fix：1、作业改造

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

@@ -449,6 +449,7 @@ public class StudentServeServiceImpl implements StudentServeService {
                 if(StringUtils.isNotBlank(result.getCourseIds())){
                     courseIds.addAll(Arrays.stream(result.getCourseIds().split(",")).map(id->Long.valueOf(id)).collect(Collectors.toList()));
                 }
+                s.setServeType(result.getServeType());
                 s.setCourseIds(StringUtils.join(courseIds, ","));
                 s.setExpectExercisesNum(courseIds.size());
                 updateService.add(s);