fixbugs

stmms-biz/src/main/java/cn/com/qmth/stmms/biz/mark/service/Impl/MarkServiceImpl.java

@@ -321,6 +321,7 @@ public class MarkServiceImpl implements MarkService {
             trialLibraryDao.deleteByExamIdAndSubjectCodeAndGroupNumber(group.getExamId(), group.getSubjectCode(),
                     group.getNumber());
         }
+        updateLibraryCount(group);
         groupDao.updateBuildTime(group.getExamId(), group.getSubjectCode(), group.getNumber(), null);
     }