计数器功能
..........\C
..........\.\STARTUP.A51
..........\.\STARTUP.LST
..........\.\STARTUP.OBJ
..........\.\counter
..........\.\counter.LST
..........\.\counter.M51
..........\.\counter.OBJ
..........\.\counter.Uv2.bak
..........\.\counter.c
..........\.\counter.hex
..........\.\counter.lnp
..........\.\counter.opt.bak
..........\.\counter.plg
..........\.\counter.uvopt
..........\.\counter.uvproj
..........\.\counter_Opt.Bak
..........\.\counter_Uv2.Bak
..........\接线图.JPG