rand

English[r?nd] American[r?nd]

n. ???? ?? ??? ??, ????

Plural: rands rand

member

English[?memb?(r)] American [?m?mb?]

n.Member; ?? ??(?? ? ?? ??), ????

??: ???

redis SRANDMEMBER ?? ???

??: ??? ??? ? ? ????? ???? ???? ?? ??? ?????.

??: ??SRANDMEMBER ? [count]

??: Redis 2.6 ???? SRANDMEMBER ??? ??? count ?? ??? ?????. count? ???? ??? ???? ?? ?? ??? ??? ?????. ??? ???? ? ??? ??? ?? ?? ??? ?????. count? ??? ??????? ??? ??? ?? ???? ?????. count? ??? ?? ??? ??? ?? ? ??? ? ?? ??? ???? ??? ??? count ? ??????. ? ??? SPOP? ????? SPOP? ????? ??? ??? ???? ???? ??, SRANDMEMBER? ???? ???? ?? ??? ??? ?????.

?? ??? ??: >= 1.0.0

?? ???: O(1) ?? ????? ???? ??. count ????? ???? O(N)???. ??? N? ??? ??? ?? ????.

??: key ????? ???? ??? ????, ???? ?? ??? nil? ?????. count ????? ???? ??? ????, ???? ?? ??? ? ??? ?????.

redis SRANDMEMBER ?? ?

????