File list (Check if you may need any files):
60-矩阵键盘简易计算器\delay.c
.....................\delay.h
.....................\display.c
.....................\display.h
.....................\keyboard.c
.....................\keyboard.h
.....................\main.c
.....................\obj\delay.lst
.....................\...\delay.obj
.....................\...\display.lst
.....................\...\display.obj
.....................\...\keyboard.lst
.....................\...\keyboard.obj
.....................\...\main.lst
.....................\...\main.obj
.....................\...\矩阵键盘简易计算器
.....................\...\矩阵键盘简易计算器.hex
.....................\...\矩阵键盘简易计算器.m51
.....................\...\矩阵键盘简易计算器.plg
.....................\矩阵键盘简易计算器.Opt
.....................\矩阵键盘简易计算器.Uv2
.....................\矩阵键盘简易计算器_Opt.Bak
.....................\obj
60-矩阵键盘简易计算器