047期:半数【《01,04,07,08,09,10,15,16,19,22,23,25,26,27,33,35,36,37,41,43,44,46,47,49》】开:04准
048期:半数【《01,03,04,07,08,13,15,16,17,20,21,23,27,28,31,33,36,37,39,40,41,42,45,46》】开:49错
049期:半数【《01,10,11,12,13,16,17,19,20,21,25,26,27,28,29,30,33,34,35,36,38,45,47,48》】开:08错
050期:半数【《01,02,03,05,07,08,09,11,13,14,17,21,25,27,32,33,36,37,40,42,43,44,45,49》】开:？？？？