0-99 51 single full version of the program, can be downloaded for beginners to learn.

独立按键0-99\ex3
............\ex3.c
............\ex3.hex
............\ex3.lnp
............\ex3.LST
............\ex3.M51
............\ex3.OBJ
............\ex3.uvopt
............\ex3.uvproj
............\ex3.__i
............\ex3_uvopt.bak
............\ex3_uvproj.bak
............\STARTUP.A51
............\STARTUP.LST
............\STARTUP.OBJ
独立按键0-99

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