Update SDK_tutorial_zh.md

zhifu gao

2023-07-03 96f2ede977f2d346413ac9a464cddbd7b0f42875

1
2
3
4
5
6
7
8
9
x    1
xx    2
xxx    3
xl    4
l    5
lx    6
lxx    7
lxxx    8
xc    9