270期：（（04,07,08,11,14,15,18,19,26,28,33,34,35,39,43,47））开：19中中中
271期：（（02,03,08,11,12,14,15,16,17,22,27,28,29,34,36,46））开：35错错错
272期：（（02,11,13,15,16,18,21,24,25,27,35,38,40,42,46,49））开：02中中中
273期：（（06,10,12,16,18,19,20,23,24,25,26,32,35,41,42,48））开：05错错错
274期：（（07,08,12,20,21,22,29,32,34,39,41,43,44,45,46,49））开：中？