278期〖特围〗04,05,07,09,10,11,12,13,14,15,16,17,19,22,30,31,32,33,35,38,43,46,47,48·（共半数）开35准
279期〖特围〗01,03,04,06,07,09,11,14,15,19,23,24,26,28,29,31,32,33,34,35,40,46,48,49·（共半数）开22错
280期〖特围〗02,04,06,09,10,11,15,17,18,23,24,27,28,31,32,36,38,39,42,43,44,46,47,48·（共半数）开08错
281期〖特围〗01,03,06,08,13,16,19,20,21,22,24,28,30,31,34,35,39,41,42,44,45,46,47,49·（共半数）开？？