281期：必中24码（01,03,07,09,10,11,12,16,18,19,29,30,31,32,34,37,38,41,42,45,46,47,48,49）开：10中
282期：必中24码（02,03,05,06,08,09,11,12,15,17,19,20,21,23,28,33,36,37,39,40,41,46,48,49）开：23中
283期：必中24码（01,02,04,08,09,10,12,13,14,16,17,23,28,29,31,33,35,37,38,39,40,41,46,47）开：18错
284期：必中24码（01,02,03,04,05,07,08,09,11,16,18,19,23,25,27,28,30,31,33,38,41,43,47,49）开：00