278期，，精心计算二十八码，，02,03,05,06,08,09,11,12,13,14,15,16,17,20,21,23,25,26,27,30,31,37,38,40,41,43,44,47═开：02对
279期，，精心计算二十八码，，02,05,06,07,08,13,14,17,21,23,26,28,29,30,31,33,35,36,38,39,40,41,44,45,46,47,48,49═开：10错
280期，，精心计算二十八码，，07,09,11,18,19,20,22,24,25,26,27,28,31,32,33,34,36,38,39,40,41,42,43,44,45,46,47,48═开：=--=