０２０期:必中１５码：开－－对
01,02,07,11,13,16,18,23,25,28,29,30,32,33,35,36,42,44,45,46,47,48,49,(24码)
02,07,11,13,16,18,23,25,28,29,30,32,35,36,42,44,46,47,48,49,(20码)
07,11,16,18,23,28,29,30,32,35,36,42,44,46,47,(15码)