247期：＜24码＞（01,02,03,04,09,10,12,13,14,15,16,19,20,21,22,28,31,33,37,39,40,43,46,49）开：40对
248期：＜24码＞（01,02,03,05,07,08,14,17,19,21,22,23,24,29,30,31,34,35,36,37,42,47,48,49）开：20错
249期：＜24码＞（03,04,05,08,09,12,13,18,21,22,24,25,30,31,32,33,35,36,42,43,44,47,48,49）开：23错
250期：＜24码＞（02,04,06,09,10,11,12,13,14,15,16,18,21,22,28,30,31,33,35,37,43,45,46,47）开：14对
251期：＜24码＞（01,02,04,08,10,11,12,13,14,17,20,21,23,24,26,27,33,35,39,40,42,43,46,48）开：00