Simple keypad operating code.

write_num\delay.c
.........\delay.LST
.........\delay.OBJ
.........\delay_lcd.c
.........\delay_lcd.LST
.........\delay_lcd.OBJ
.........\HEX\delay.obj
.........\...\delay_lcd.obj
.........\...\i2c_function.obj
.........\...\i2c_function.__i
.........\...\i2c_key_write.obj
.........\...\KEY_4x4
.........\...\KEY_4x4.hex
.........\...\KEY_4x4.lnp
.........\...\KEY_4x4.plg
.........\...\lcd_play4.obj
.........\...\lcd_play8.obj
.........\...\main.obj
.........\...\main_key1.obj
.........\...\main_key1.__i
.........\...\main_key2.obj
.........\...\main_scan.obj
.........\...\main_scan.__i
.........\...\write_num.obj
.........\...\write_num2.obj
.........\key.plg
.........\KEY_4x4.hex
.........\KEY_4x4.lnp
.........\KEY_4x4.M51
.........\KEY_4x4.plg
.........\KEY_4x4.uvgui.BB-STD15
.........\KEY_4x4.uvgui.BB-STD16
.........\KEY_4x4.uvgui.BB-STD18
.........\KEY_4x4.uvgui.BB-STD2
.........\KEY_4x4.uvgui.BB-STD20
.........\KEY_4x4.uvgui.BB-STD4
.........\KEY_4x4.uvgui.BB-STD5
.........\KEY_4x4.uvgui.bb-teacher
.........\KEY_4x4.uvgui.shai
.........\KEY_4x4.uvgui_BB-STD16.bak
.........\KEY_4x4.uvgui_BB-STD18.bak
.........\KEY_4x4.uvgui_BB-STD20.bak
.........\KEY_4x4.uvgui_BB-STD4.bak
.........\KEY_4x4.uvgui_BB-STD5.bak
.........\KEY_4x4.uvopt
.........\KEY_4x4.uvproj
.........\KEY_4x4_uvopt.bak
.........\KEY_4x4_uvproj.bak
.........\lcd_play.h
.........\lcd_play4.c
.........\lcd_play4.LST
.........\lcd_play4.OBJ
.........\lcd_play8.c
.........\LISTING\delay.lst
.........\.......\delay_lcd.lst
.........\.......\i2c_function.lst
.........\.......\i2c_key_write.lst
.........\.......\KEY_4x4.m51
.........\.......\lcd_play4.lst
.........\.......\main_key1.lst
.........\.......\main_key2.lst
.........\.......\main_scan.lst
.........\.......\write_num.lst
.........\main_key1.c
.........\main_key1.LST
.........\main_key1.OBJ
.........\main_key2.c
.........\main_key2.OBJ
.........\REG_89C51.h
.........\type_var_H.h
.........\write_num.c
.........\write_num.LST
.........\write_num.OBJ
.........\HEX
.........\LISTING
write_num

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