021期：大围：01,04,06,08,09,11,12,13,14,17,18,20,24,26,28,35,36,37,41,42,45,46,47,49（共半数）开14准
022期：大围：03,04,06,07,10,12,13,14,15,16,18,21,24,26,28,29,30,34,40,41,43,45,46,49（共半数）开04准
023期：大围：07,08,09,10,11,13,14,15,16,17,24,25,26,27,29,31,35,36,37,38,41,44,46,48（共半数）开45错
024期：大围：02,08,09,11,13,15,17,18,21,22,24,26,27,29,30,34,35,36,41,44,45,46,48,49（共半数）开？？√【？中？】