018期：必中24码（01,02,03,04,05,06,08,11,12,13,17,18,19,22,23,25,26,29,30,33,41,43,47,49）开：23中
019期：必中24码（01,03,05,06,07,12,13,15,16,18,19,21,22,23,24,30,31,35,41,42,44,47,48,49）开：27错
020期：必中24码（01,03,05,06,10,14,15,19,20,21,24,26,28,29,33,34,35,36,39,40,41,42,47,48）开：16错
021期：必中24码（01,02,03,04,05,06,09,14,17,19,21,22,23,24,25,27,32,38,39,40,42,46,47,49）开：39中
022期：必中24码（01,02,03,05,06,08,12,13,14,17,18,19,23,24,26,34,36,40,41,43,44,46,48,49）开：00
