修改

src/main/java/com/ydtech/modules/admin/service/impl/SysDeptServiceImpl.java

@@ -37,6 +37,7 @@ public class SysDeptServiceImpl extends ServiceImpl<SysDeptMapper, SysDept>
         LambdaQueryWrapper<SysDept> lqw = new LambdaQueryWrapper<>();
         lqw.eq(SysDept::getDelFlag, 0);
         lqw.likeRight(SysDept::getId, deptId);
+        lqw.orderByDesc(SysDept::getOrderNum);
         List<SysDept> sysDeptList = list(lqw);
         Map<String, List<SysDept>> map = sysDeptList.stream().collect(Collectors.groupingBy(SysDept::getParentId));
         sysDeptList.forEach(i -> i.setChildren(map.getOrDefault(i.getId(), new ArrayList<>())));