018期：←24码→（03,05,06,07,10,14,15,20,21,24,26,27,30,31,32,33,35,36,37,39,44,45,47,49）开：31准
019期：←24码→（04,05,07,08,09,11,13,17,18,22,23,24,25,27,28,33,34,35,36,37,38,40,46,47）开：40准
020期：←24码→（01,02,05,06,11,14,15,17,19,20,22,24,26,30,31,34,35,38,39,40,42,44,46,49）开：？？