按键加1数码管显示\ex1 .................\ex1.c .................\ex1.hex .................\ex1.lnp .................\ex1.LST .................\ex1.M51 .................\ex1.OBJ .................\ex1.Opt .................\ex1.plg .................\ex1.Uv2 .................\ex1_Opt.Bak .................\ex1_Uv2.Bak 按键加1数码管显示