279期：（（01,06,09,10,11,13,22,23,26,29,30,32,34,42,43,48））开：10准
280期：（（03,16,17,21,22,24,28,32,33,34,35,37,38,42,45,46））开：15错
281期：（（01,02,05,08,09,10,12,13,14,17,23,29,34,36,40,45））开：10准
282期：（（02,05,06,07,09,14,15,21,23,25,28,30,38,39,43,49））开：23准
283期：（（08,09,10,16,17,22,23,24,30,31,34,39,41,43,45,49））开：18错
284期：（（01,03,06,13,15,16,19,26,27,35,37,44,45,46,48,49））开：//