020期： 24码（03,05,08,09,11,12,14,17,18,21,22,23,24,25,27,29,30,32,33,36,37,38,46,47）开？33准
021期： 24码（01,02,04,06,08,13,19,20,22,24,26,27,30,31,32,34,35,38,42,44,45,46,48,49）开？32准
022期： 24码（01,02,08,09,10,11,13,17,18,20,23,24,27,29,30,34,35,36,38,39,44,47,48,49）开？09准
023期： 24码（01,02,03,04,05,11,12,14,15,17,18,19,20,23,24,25,30,31,36,41,44,45,48,49）开？00