０２８期:必中１５码：开－－对
03,04,06,09,10,11,15,16,18,21,22,23,27,28,30,33,34,35,39,40,42,45,46,47,(24码)
03,04,09,10,11,15,21,22,23,27,28,30,34,35,39,40,46,47,(20码)
03,04,09,10,11,15,21,22,23,27,28,30,34,46,47,(15码)