更新告警信息数量

src/main/java/com/taauav/front/service/impl/UserWaterAlarmServiceImpl.java

@@ -214,6 +214,7 @@ public class UserWaterAlarmServiceImpl extends BaseServiceImpl<UserWaterAlarmMap
         QueryWrapper<TauvWaterAlarm> queryWrapper = new QueryWrapper<>();
         queryWrapper.in("status", new Integer[]{2, 4, 5});
         queryWrapper.eq("mark", 1);
+        queryWrapper.last(String.format("limit %s", num));
         List<TauvWaterAlarm> waterAlarmList = userWaterAlarmMapper.selectList(queryWrapper);
         return response.success(waterAlarmList);
     }