049期:半数【《04,05,06,08,11,12,13,16,18,21,23,24,25,28,29,30,34,36,39,41,44,45,46,49》】开:44准
050期:半数【《01,02,06,07,08,09,10,11,19,22,23,24,25,27,31,33,34,36,40,41,43,45,47,49》】开:42错
051期:半数【《03,04,05,06,07,08,11,12,14,16,18,22,24,28,29,30,31,34,39,41,42,45,46,47》】开:？？？？