Description: Microcontroller development of the keyboard test, written in C, suitable for understanding the principle of matrix keyboard
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第四节 键盘实验\例1-键盘控制LED\lhj
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...............\...............\l_key.c
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...............\..2-按键控制继电器和蜂鸣器\lhj
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...............\..........................\l_key.c
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...............\..3-键值数码管显示\lhj
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...............\..................\lhj.Opt
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...............\..................\l_key.c
...............\..................\l_key.OBJ
...............\..4-按键加减数码管显示\lhj
...............\......................\lhj.hex
...............\......................\lhj.lnp
...............\......................\lhj.Opt
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...............\......................\lhj.Uv2
...............\......................\lhj_Opt.Bak
...............\......................\lhj_Uv2.Bak
...............\......................\l_key.c
...............\......................\l_key.OBJ
...............\..5-按键加减数码管显示（深）\lhj
...............\............................\lhj.hex
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...............\............................\lhj.Opt
...............\............................\lhj.plg
...............\............................\lhj.Uv2
...............\............................\lhj_Opt.Bak
...............\............................\lhj_Uv2.Bak
...............\............................\l_key.c
...............\............................\l_key.OBJ
...............\..6-按键扫描且有键按下发声\key.c
...............\..........................\key.OBJ
...............\..........................\lhj
...............\..........................\lhj.hex
...............\..........................\lhj.lnp
...............\..........................\lhj.Opt
...............\..........................\lhj.plg
...............\..........................\lhj.Uv2
...............\..........................\lhj_Opt.Bak
...............\..........................\lhj_Uv2.Bak
...............\例1-键盘控制LED
...............\例2-按键控制继电器和蜂鸣器
...............\例3-键值数码管显示
...............\例4-按键加减数码管显示
...............\例5-按键加减数码管显示（深）
...............\例6-按键扫描且有键按下发声
第四节 键盘实验
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