例1-中断INT0\INT0.c
............\INT0.OBJ
............\lhj
............\lhj.hex
............\lhj.lnp
............\lhj.Opt
............\lhj.plg
............\lhj.Uv2
............\lhj_Opt.Bak
............\lhj_Uv2.Bak
例1-中断INT0