File list (Check if you may need any files):
LCD+矩阵按键值\c语言\LCD1602P1Key
..............\.....\LCD1602P1Key.c
..............\.....\LCD1602P1Key.hex
..............\.....\LCD1602P1Key.lnp
..............\.....\LCD1602P1Key.LST
..............\.....\LCD1602P1Key.M51
..............\.....\LCD1602P1Key.OBJ
..............\.....\LCD1602P1Key.Opt
..............\.....\LCD1602P1Key.plg
..............\.....\LCD1602P1Key.Uv2
..............\.....\LCD1602P1Key_Opt.Bak
..............\.....\LCD1602P1Key_Uv2.Bak
..............\.....\STARTUP.A51
..............\.....\STARTUP.LST
..............\.....\STARTUP.OBJ
..............\排线连接方法.txt
..............\汇编\lcd+button
..............\....\lcd+button.hex
..............\....\lcd+button.lnp
..............\....\lcd+button.M51
..............\....\lcd+button.Opt
..............\....\lcd+button.plg
..............\....\lcd+button.Uv2
..............\....\lcd+button_Opt.Bak
..............\....\lcd+button_Uv2.Bak
..............\....\lcd1602jz.asm
..............\....\lcd1602jz.LST
..............\....\lcd1602jz.OBJ
..............\c语言
..............\汇编
LCD+矩阵按键值