数码管动态显示
..............\lesson5_1
..............\lesson5_1.c
..............\lesson5_1.hex
..............\lesson5_1.lnp
..............\lesson5_1.LST
..............\lesson5_1.M51
..............\lesson5_1.OBJ
..............\lesson5_1.Opt
..............\lesson5_1.plg
..............\lesson5_1.Uv2
..............\lesson5_1_Opt.Bak
..............\lesson5_1_Uv2.Bak
..............\lesson5_2.c
..............\lesson5_2.LST
..............\lesson5_2.OBJ
..............\lesson5_3.c
..............\lesson5_3.LST
..............\lesson5_3.OBJ