集合操作

set操作：

127.0.0.1:6379> sadd s_set 1 4 54 43 654 434（可以设置这个集合放值）
(integer) 6
127.0.0.1:6379> smembers s_set
1) "1"
2) "4"
3) "43"
4) "54"
5) "434"
6) "654"

127.0.0.1:6379> scard s_set
(integer) 6

 

求这两个集合的差值：

127.0.0.1:6379> smembers s_set
1) "1"
2) "4"
3) "43"
4) "54"
5) "434"
6) "654"
127.0.0.1:6379> smembers s_set2
1) "1"
2) "2"
3) "32"
4) "43"
5) "54"
127.0.0.1:6379> sdiff s_set s_set2（注意一下，这个是取这个s_set 有s_set2没有的值）
1) "4"
2) "434"
3) "654"
127.0.0.1:6379> sdiff s_set2 s_set
1) "2"
2) "32"

把这两个集合的差值放进另一个集合里面
127.0.0.1:6379> sdiffstore s-set3 s_set s_set2
(integer) 3

127.0.0.1:6379> smembers s-set3
1) "4"
2) "434"
3) "654"

取交集：

127.0.0.1:6379> sinter s_set s_set2
1) "1"
2) "43"
3) "54"
sinterstore（ s-set4 s_set s_set2）交集存到另一个地方

smove(src,dst,value)
spop(name)

 

127.0.0.1:6379> srandmember s_set 2(随机获取某2个元素）
1) "4"
2) "654"
127.0.0.1:6379> srandmember s_set 2
1) "54"

127.0.0.1:6379> srem s_set 1 54（删除这个集合的多个值（可以的单个））
(integer) 2
2) "1"

取这多个集合的并集：

127.0.0.1:6379> sunion s_set s_set2
1) "1"
2) "2"
3) "4"
4) "32"
5) "43"
6) "54"
7) "434"
8) "654"

查找：

127.0.0.1:6379> sscan s_set 0 match 4
1) "0"
2) 1) "4"
127.0.0.1:6379> sscan s_set 0 match $*
1) "0"
2) (empty list or set)
127.0.0.1:6379> sscan s_set 0 match 4*
1) "0"
2) 1) "4"
2) "43"
3) "434"

根据权重来进行：
127.0.0.1:6379> zadd z_set 1 alex（这个1是权重）
(integer) 1
(1.82s)
127.0.0.1:6379> zadd z_set 4 xaiooyu
(integer) 1
127.0.0.1:6379> zadd z_set -19 xauili
(integer) 1
127.0.0.1:6379> zranbcg z_set 0 -1
(error) ERR unknown command 'zranbcg'
127.0.0.1:6379> zrange z_set 0 -1
1) "xauili"
2) "alex"
3) "xaiooyu"

127.0.0.1:6379> zrange z_set 0 -1 withscores
1) "xauili"
2) "-19"
3) "alex"
4) "1"

127.0.0.1:6379> help zrangebyscore（这个是可以取这个得分在多少区间的）

ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count]
summary: Return a range of members in a sorted set, by score
since: 1.0.5
group: sorted_set

127.0.0.1:6379> zrangebyscore z_set 1 10
1) "alex"
2) "xaiooyu"
(1.81s)
5) "xaiooyu"
6) "4"

127.0.0.1:6379> zrevrange z_set 0 -1 withscores（这个可以按照倒叙来）
1) "xaiooyu"
2) "4"
3) "alex"
4) "1"
5) "xauili"
6) "-19"

127.0.0.1:6379> zrank z_set xauili（这个可以取排名）
(integer) 0

127.0.0.1:6379> zscore z_set alex（获取某个人的分数）
"1"

zinterstore zset3 2 z_set z_set2agreegate sum(这两个的权重相加)