277期：＜24码＞（01,05,07,08,09,10,12,13,16,19,20,21,22,24,26,34,35,36,39,41,42,45,48,49）开：16对
278期：＜24码＞（02,04,07,08,09,10,12,14,15,17,19,25,27,31,32,34,36,37,39,44,45,47,48,49）开：28错
279期：＜24码＞（02,04,05,06,07,09,11,14,15,16,17,18,19,20,22,23,25,26,28,37,38,40,46,47）开：27错
280期：＜24码＞（01,02,03,05,08,09,10,14,15,21,22,27,28,31,32,34,36,37,38,40,44,46,48,49）开：00