命令:
ZADD:
ZADD key score member [score member ...] 增加元素(score:整数|浮点数)
如:ZADD scoreboard 89 tom 67 peter 100 david
ZSCORE:
ZSCORE key member 获得元素的分数 如:ZSCORE scoreboard tom
ZRANGE:(分数从小到大)
ZRANGE key start stop [WITHSCORES] 获得排名在某个索引范围的元素列表
ZREVRANGE:(分数从大到小)
ZREVRANGE key start stop [WITHSCORES]
ZRANGEBYSCORE:(分数从小到大)
ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count] 获得指定分数范围的元素
ZREVRANGEBYSCORE:
ZREVRANGESCORE key min max [WITHSCORES] [LIMIT offset count] 获得指定分数范围的元素
ZINCRBY:
ZINCRBY key increment member 增加某个元素的分数
ZCARD:
ZCARD keey 获得集合中元素的数量
ZCOUNT:
ZCOUNT key min max 获得指定分数范围内的元素个数
ZREM:
ZREM key member [member ...] 删除一个或多个元素
ZREMRANGEBYRANK:
ZRENRANGEBYRANK key start stop 按照排名索引范围删除元素
ZREMRANGEBYSCORE:
ZREMRANGEBYSCORE key min max 按照分数范围删除元素
ZRANK:
ZRANK key member 获得元素的排名(分数从小到大,从0开始)
ZREVRANK:
ZREVRANK key member 获得元素的排名(分数从大到小,从0开始)
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