Microcontroller-based matrix keyboards, programming language for the c language, of matrix keyboard input on the microcontroller

键盘（矩阵）\lesson5-3
............\lesson5-3.c
............\lesson5-3.hex
............\lesson5-3.lnp
............\lesson5-3.LST
............\lesson5-3.M51
............\lesson5-3.OBJ
............\lesson5-3.plg
............\STARTUP.A51
............\STARTUP.LST
............\STARTUP.OBJ
............\矩阵键盘
............\矩阵键盘.c
............\矩阵键盘.hex
............\矩阵键盘.lnp
............\矩阵键盘.LST
............\矩阵键盘.M51
............\矩阵键盘.OBJ
............\矩阵键盘.Opt
............\矩阵键盘.plg
............\矩阵键盘.Uv2
............\矩阵键盘_Opt.Bak
............\矩阵键盘_Uv2.Bak
键盘（矩阵）

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