275期：（（02,09,10,14,15,17,19,22,28,32,35,40,42,44,46,49））开：17中中中
276期：（（07,10,15,17,18,21,26,30,32,39,42,43,44,46,47,49））开：14错错错
277期：（（07,10,12,20,21,25,26,27,29,32,34,36,38,44,45,49））开：11错错错
278期：（（02,06,07,09,10,13,17,22,24,26,27,29,30,35,46,47））开：中？