From 91a49c7bc76667b79fe9801ff24f7820b1d63a75 Mon Sep 17 00:00:00 2001
From: zhangpc <bgtickt@gmail.com>
Date: Wed, 12 Oct 2022 15:45:13 +0800
Subject: [PATCH] fix ObNumber desc_ to adjust digits' len (#1078)

As ObNumber.len_ should be same with digits' len, change desc_ of ObNumber constructor from 3 to 1