339期半数<<04,07,08,09,10,11,13,14,15,18,19,21,22,24,25,26,28,32,34,35,37,39,42,45,46,47,48,49>>】开48准
340期半数<<01,04,05,06,07,08,11,13,14,17,18,20,22,23,26,27,28,31,32,37,39,40,41,42,43,44,48,49>>】开16错
341期半数<<01,02,04,07,10,13,15,16,21,22,24,25,27,29,30,31,34,35,37,39,40,41,43,45,46,47,48,49>>】开？？