【实验46】钟表（可矫正时间）
............................\clock
............................\clock.c
............................\clock.hex
............................\clock.lnp
............................\clock.LST
............................\clock.M51
............................\clock.OBJ
............................\clock.Opt
............................\clock.plg
............................\clock.Uv2
............................\clock_Opt.Bak
............................\clock_Uv2.Bak