报告问题为0的情况

tuoheng-admin/src/main/java/com/tuoheng/admin/service/impl/QuestionServiceImpl.java

@@ -86,6 +86,9 @@ public class QuestionServiceImpl extends BaseServiceImpl<QuestionMapper, Questio
     }
 
     private List<Question> getQuestions(QuestionQuery query, List<ThMission> thMissions) {
+        if(thMissions.size()==0){
+            return new ArrayList<>();
+        }
         return questionMapper.selectList(new LambdaQueryWrapper<Question>()
                 //只需要取最上面的那一条
                 .eq(Question::getMissionId, thMissions.get(0).getId())