300期：大围：01,02,03,04,05,07,09,10,13,15,16,18,24,29,30,33,34,35,36,38,39,40,42,44（共半数）开40准
301期：大围：02,06,08,10,12,15,16,17,18,19,20,23,27,29,30,31,35,37,38,39,42,43,45,49（共半数）开05错
302期：大围：01,02,04,07,10,11,15,16,20,23,24,26,29,30,32,35,36,37,40,42,44,46,47,49（共半数）开？？√【？中？】