SCM STC89C52 independent keyboard matrix keyboard, and describes examples of the operation

key_1\key_1
.....\key_1.c
.....\key_1.hex
.....\key_1.LST
.....\key_1.M51
.....\key_1.OBJ
.....\key_1.Opt
.....\key_1.plg
.....\key_1.Uv2
.....\key_1_Uv2.Bak
....2\key_2
.....\key_2.c
.....\key_2.hex
.....\key_2.LST
.....\key_2.M51
.....\key_2.OBJ
.....\key_2.Opt
.....\key_2.plg
.....\key_2.Uv2
.....\key_2_Opt.Bak
.....\key_2_Uv2.Bak
....3\key_3
.....\key_3.c
.....\key_3.hex
.....\key_3.LST
.....\key_3.M51
.....\key_3.OBJ
.....\key_3.Opt
.....\key_3.plg
.....\key_3.Uv2
.....\key_3_Opt.Bak
.....\key_3_Uv2.Bak
key_1
key_2
key_3

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