256期：二十八码，[[02,03,05,06,07,08,11,12,16,17,18,20,21,22,23,24,26,27,28,29,30,32,33,34,35,39,41,42]]开：39对
257期：二十八码，[[01,02,04,06,07,08,09,13,14,16,18,19,23,24,25,26,27,28,29,32,34,36,37,41,44,47,48,49]]开：08对
258期：二十八码，[[01,02,03,04,05,07,08,10,12,14,16,17,19,24,25,26,27,29,33,35,37,38,40,41,44,45,46,49]]开：40对
259期：二十八码，[[02,04,07,08,09,10,13,14,17,18,19,21,22,23,24,26,27,30,31,32,34,37,39,41,45,46,47,49]]开：29错
260期：二十八码，[[01,02,03,05,06,08,09,10,12,13,17,21,22,24,28,31,32,33,36,39,40,41,42,43,44,45,46,48]]开：？
