File list (Check if you may need any files):
电子琴_c
........\独立键盘实现的电子琴
........\....................\51hei
........\....................\51hei.M51
........\....................\51hei.Opt
........\....................\51hei.Uv2
........\....................\51hei.hex
........\....................\51hei.plg
........\....................\51hei_Opt.Bak
........\....................\51hei_Uv2.Bak
........\....................\Text1.LST
........\....................\Text1.OBJ
........\....................\Text1.c
........\矩阵键盘实现的电子琴
........\....................\51hei
........\....................\51hei.LST
........\....................\51hei.M51
........\....................\51hei.OBJ
........\....................\51hei.Opt
........\....................\51hei.Uv2
........\....................\51hei.c
........\....................\51hei.hex
........\....................\51hei.lnp
........\....................\51hei.plg
........\....................\51hei_Opt.Bak
........\....................\51hei_Uv2.Bak
........\....................\Text1.LST
........\....................\Text1.OBJ