bugfix

src/main/java/com/huiju/estateagents/service/impl/TaBuildingDynamicServiceImpl.java

         taActivityDynamicEnlist.setCreateDate(LocalDateTime.now())
                 .setBuildingId(taBuildingDynamic.getDynamicId());
         int state = taActivityDynamicEnlistMapper.insert(taActivityDynamicEnlist);
-        int joinNum = taBuildingDynamic.getEnlistNum() == null ? 1:taBuildingDynamic.getEnlistNum()+1;
+        int joinNum = taBuildingDynamic.getEnlistNum() == null ? 1:taBuildingDynamic.getEnlistNum()+taActivityDynamicEnlist.getAttendNum();
         taBuildingDynamic.setEnlistNum(joinNum);
         buildingDynamicMapper.updateById(taBuildingDynamic);
         return ResponseBean.success(state);