278期：（（02,06,07,09,10,13,17,22,24,26,27,29,30,35,46,47））开：02中中中
279期：（（01,06,09,11,12,16,20,23,31,32,33,41,42,43,44,45））开：10错错错
280期：（（02,04,05,07,08,09,11,16,27,33,35,41,44,46,47,48））开：15错错错
281期：（（04,05,12,14,15,23,24,27,28,30,32,35,39,43,45,47））开：中？