248期：（（04,06,09,12,14,15,17,21,24,26,28,29,31,33,39,43））开：12中中中
249期：（（03,06,08,09,16,17,28,30,32,35,36,37,38,41,48,49））开：02错错错
250期：（（04,05,10,11,16,17,19,22,24,27,29,31,40,41,42,44））开：12错错错
251期：（（04,09,12,15,16,22,23,27,29,30,31,33,39,40,41,42））开：中？