新增训练说明

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

@@ -112,7 +112,7 @@ public class StudentLessonExaminationServiceImpl extends ServiceImpl<StudentLess
                             eq(StudentLessonExaminationDetail::getLessonExaminationId, queryInfo.getLessonExaminationId()).list();
                     String musicScoreIds = list.stream().map(e->e.getMusicScoreId().toString()).collect(Collectors.joining(","));
                     Map<Integer, SysMusicScore> musicScoreMap = new HashMap<>();
-                    if (StringUtils.isEmpty(musicScoreIds)) {
+                    if (StringUtils.isNotEmpty(musicScoreIds)) {
                         List<SysMusicScore> musicScores = sysMusicScoreDao.findByIds(musicScoreIds);
                         if (CollectionUtils.isNotEmpty(musicScores)) {
                             musicScoreMap = musicScores.stream().collect(Collectors.toMap(SysMusicScore::getId, e -> e));