With S52 and 1602 LCD can be set up to do multi-level menu

用S52和1602液晶做的可进行设置的多级菜单
.......................................\AT89X52.H
.......................................\Backup of Copy of YKQ52.Sch
.......................................\YKQ
.......................................\...\ABSACC.H
.......................................\...\displist.h
.......................................\...\jidian.c
.......................................\...\lcm.h
.......................................\...\memory.h
.......................................\...\minsys
.......................................\...\minsys.c
.......................................\...\minsys.hex
.......................................\...\minsys.lnp
.......................................\...\minsys.LST
.......................................\...\minsys.M51
.......................................\...\minsys.OBJ
.......................................\...\minsys.Opt
.......................................\...\minsys.plg
.......................................\...\minsys.Uv2
.......................................\...\minsys_Opt.Bak
.......................................\...\minsys_Uv2.Bak
.......................................\...\seng.h
.......................................\...\复件 minsys.c

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