初识Redis(安装,持久化,数据类型)
127.0.0.1:6379> sadd set1 a (integer) 1127.0.0.1:6379> SADD set1 b
(integer) 1
127.0.0.1:6379> sadd set1 c
(integer) 1
127.0.0.1:6379> SMEMBERS SET1
(empty list or set)
127.0.0.1:6379> SMEMBERS set1
1) "c"
2) "a"
3) "b"
127.0.0.1:6379> sadd set2 a
(integer) 1
127.0.0.1:6379> sadd set2 2
(integer) 1
127.0.0.1:6379> sadd set2 3
(integer) 1
127.0.0.1:6379> sadd set2 c
(integer) 1
127.0.0.1:6379> SMEMBERS set2
1) "c"
2) "a"
3) "3"
4) "2"
127.0.0.1:6379> SUNION set1 set2 //求并集
1) "a"
2) "c"
3) "3"
4) "b"
5) "2"
127.0.0.1:6379> sinter set1 set2 //求交集
1) "c"
2) "a"
127.0.0.1:6379> SDIFF set1 set2 //求差集
1) "b"
127.0.0.1:6379> SREM set1 c //删除某元素
(integer) 1
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