89c52 based on the four-way Responder scoring device, lcd1602 display, logical, easy to operate

改进，改进，改进！\1
..................\1.c
..................\1.hex
..................\1.lnp
..................\1.LST
..................\1.M51
..................\1.OBJ
..................\1.Opt
..................\1.plg
..................\1.Uv2
..................\1.__i
..................\1_Opt.Bak
..................\1_Uv2.Bak
..................\Last Loaded 抢答器.DBK
..................\STARTUP.A51
..................\STARTUP.LST
..................\STARTUP.OBJ
..................\抢答器.DSN
..................\抢答器.PWI
改进，改进，改进！

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