2) "249"

3) "lisi"

4) "240"

注意：max在min之前

g）zrank

语法：zrank key member

解释：根据score从低到高，返回member在有续集中的index

[plain]

redis 127.0.0.1:6379> zrange score 0 -1

1) "liuli"

2) "zhangsan"

3) "lisi"

4) "wangwu"

redis 127.0.0.1:6379> zrank score liuli

(integer) 0

redis 127.0.0.1:6379> zrank score wangwu

(integer) 3

h）zrevrank

语法：zrevrank key member

解释：根据score从高到低排序，返回member在有序集key中的index

[plain]

redis 127.0.0.1:6379> zrange score 0 -1

1) "liuli"

2) "zhangsan"

3) "lisi"

4) "wangwu"

redis 127.0.0.1:6379> zrevrank score liuli

(integer) 3

redis 127.0.0.1:6379> zrevrank score wangwu

(integer) 0

i)zcard

语法：zcard key

解释：返回有续集key的基数

[plain]

redis 127.0.0.1:6379> zcard score

(integer) 4

redis 127.0.0.1:6379> zcard stdu #有续集不存在返回0

(integer) 0

3）update

a）zincrby

语法：zincrby key increment member

解释：有续集key的member增加增量increment，返回增加后的score

[plain]

redis 127.0.0.1:6379> zscore score liuli

"100"

redis 127.0.0.1:6379> zincrby score 300 liuli

"400"

redis 127.0.0.1:6379> zscore score liuli

"400"

redis 127.0.0.1:6379> zincrby score 500 xie

"500"

注意：如果member在key中不存在，则新增个member

4）delete

a）zrem

语法：zrem key member [member ...]

解释：移除有续集中的一个或多个member，返回移除member的个数

[plain]

redis 127.0.0.1:6379> zrange score 0 -1

1) "zhangsan"

2) "lisi"

3) "wangwu"

4) "liuli"

5) "xie"

redis 127.0.0.1:6379> zrem score xie wwww #www不存在

(integer) 1

redis 127.0.0.1:6379> zrange score 0 -1

1) "zhangsan"

2) "lisi"

3) "wangwu"

4) "liuli"

注意:如果member不存在，则忽略

b）zremrangebyrank

语法：zremrangebyrank key start stop

解释：移除有续集中指定排名范围【start stop】的元素，返回移除元素个数

[plain]

redis 127.0.0.1:6379> zrange score 0 -1

1) "zhangsan"

2) "lisi"

3) "wangwu"

4) "liuli"

redis 127.0.0.1:6379> zremrangebyrank score 0 1

(integer) 2

redis 127.0.0.1:6379> zrange score 0 -1

1) "wangwu"

2) "liuli"

注意：如果stop在start之前，则移除0个

c）zremrangebyscore

语法：zremrangebyscore key min max

解释：移除有续集中的member，移除member的score大于等于min小于等于max；返回移除元素个数

[plain]

redis 127.0.0.1:6379> zrange score 0 -1 withscores

1) "wangwu"

2) "249"

3) "liuli"

4) "400"

redis 127.0.0.1:6379> zremrangebyscore score 248 250

(integer) 1

redis 127.0.0.1:6379> zrange score 0 -1 withscores

1) "liuli"

2) "400"

5）其他

a）zinterstore

语法：zinterstore destination numkeys key[key...] [weights weight] [aggregate sum|min|max]

解释：统计多个有续集的交集，其中有续集key的个数必须以numkeys参数指定，并将统计结果存储到destination。默认情况下，destination中元素的score是各个有续集key中元素的score之和。使用weights为每个有续集指定个乘法因子，每个有续集的score在传递给集合函数（aggregate）之前，先乘以乘法因子。如果没指定乘法因子weight，默认是1；使用aggregate选项指定交集的聚合方式。min，最小score，max，最大score，sum，求和。

[plain]

redis 127.0.0.1:6379> zrange score 0 -1 withscores

1) "lisi"

2) "20"

3) "liuli"

4) "400"

redis 127.0.0.1:6379> zrange score1 0 -1 withscores

1) "wangwu"

2) "20"

3) "liuli"

4) "30"

redis 127.0.0.1:6379> zinterstore dest 2 score score1 #交集求和 sum（score.member.score * 1 + score1.member.score * 1）

(integer) 1

redis 127.0.0.1:6379> zrange dest 0 -1 withscores

1) "liuli"

2) "430"