247期：二十八码，，，，，，，│╱01,02,03,05,06,08,09,11,13,14,17,19,20,21,23,24,25,29,30,31,33,35,40,41,42,44,46,49╲│开：40中
248期：二十八码，，，，，，，│╱01,02,03,04,06,07,08,09,10,12,13,14,15,19,24,25,27,28,30,33,34,35,37,39,42,44,47,49╲│开：20错
249期：二十八码，，，，，，，│╱03,04,08,13,14,16,18,19,20,21,22,24,26,27,29,30,31,32,35,36,37,39,43,44,45,46,47,49╲│开：？