# 阻塞
BZPOPMIN key [key ...]
BZPOPMAX key [key ...]
BZPOP timeout numkeys key [key ...] MIN|MAX [COUNT count]
# 针对分数的操作
ZPOPMIN key min max
ZPOPMAX key [count]
ZMPOP numkeys key [key ...]
ZLEXCOUNT key min max
ZADD key [NX|XX] [GT|LT] [CH] [INCR] score member [score member ...]
ZCARD key
ZCOUNT key min max
ZSCAN
ZINCREBY key increment member
ZSCORE
ZMSCORE
ZRANGE
ZRANGESTORE
ZRANGEBYLEX
ZREVRANGEBYLEX
ZRANGEBYSCORE
ZLEXCOUNT key min max
# 集合操作
ZINTER numkeys increment member
ZINTERCARD destination numkeys key [key ...]
ZUNION
ZUNIONSTORE
ZDIFF numkeys key [key ...] [WITHSCORES]
ZDIFFSTORE destination numkeys key [key ...]
ZINTERSTORE numkeys key [key ...] [LIMIT limit]
数据结构
ZSet底层使用了两个数据结构：Hash和跳跃表。Hash的作用是关联元素value和权重score，保障元素value的唯一性，可以通过元素value找到相应的score值。跳跃表的目的是给元素value排序，根据score的范围获取元素列表。