草稿——redis学习有关set集合日志

 

#sadd set集合名 值（没有集合创建set集合，添加值）

127.0.0.1:6379[1]> sadd set ling 
(integer) 1
127.0.0.1:6379[1]> sadd set meng
(integer) 1
127.0.0.1:6379[1]> sadd set wu
(integer) 1


#smembers set集合名（查看set集合所有值）

127.0.0.1:6379[1]> smembers set
1) "meng"
2) "wu"
3) "ling"

#sismember set集合名 值 （判断set集合中有没有后续值）

127.0.0.1:6379[1]> sismember set ling
(integer) 1
127.0.0.1:6379[1]> sismember set zhangsa
(integer) 0
127.0.0.1:6379[1]> sadd myset one
(integer) 1
127.0.0.1:6379[1]> sadd myset two
(integer) 1
127.0.0.1:6379[1]> sadd myset three
(integer) 1

#scard set集合名（统计set集合中值的个数）

127.0.0.1:6379[1]> scard myset
(integer) 3
127.0.0.1:6379[1]> smembers myset
1) "three"
2) "one"
3) "two"

#srem set集合名 值（删除set集合中某个值）

127.0.0.1:6379[1]> srem myset one
(integer) 1
127.0.0.1:6379[1]> smembers myset
1) "three"
2) "two"

#srandmember 集合名 个数（获取指定set集合中指定个数的值，不设置值就为一个值）

127.0.0.1:6379[1]> srandmember myset
"three"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"two"
127.0.0.1:6379[1]> srandmember myset
"three"
127.0.0.1:6379[1]> srandmember myset 2
1) "three"
2) "two"
127.0.0.1:6379[1]> sadd myset one
(integer) 1
127.0.0.1:6379[1]> srandmember mysey 2
(empty array)
127.0.0.1:6379[1]> srandmember myset 2
1) "three"
2) "two"
127.0.0.1:6379[1]> srandmember myset 2
1) "three"
2) "one"
127.0.0.1:6379[1]> smembers myset
1) "three"
2) "one"
3) "two"


#spop set集合名（弹出set集合任意一个值）

127.0.0.1:6379[1]> spop myset
"one"
127.0.0.1:6379[1]> spop myset
"three"
127.0.0.1:6379[1]> spop myset
"two"
127.0.0.1:6379[1]> exists myset
(integer) 0
127.0.0.1:6379[1]> sadd myset ling
(integer) 1
127.0.0.1:6379[1]> sadd myset meng
(integer) 1
127.0.0.1:6379[1]> sadd myset ben
(integer) 1
127.0.0.1:6379[1]> smembers myset
1) "meng"
2) "ben"
3) "ling"
127.0.0.1:6379[1]> smembers set
1) "meng"
2) "wu"
3) "ling"

#smove 集合1 集合2 值（将指定值从集合1移动到集合2中）

127.0.0.1:6379[1]> smove set myset wu
(integer) 1
127.0.0.1:6379[1]> smembers myset
1) "meng"
2) "ben"
3) "wu"
4) "ling"
127.0.0.1:6379[1]> smembers set
1) "meng"
2) "ling"

#sdiff 集合1 集合2（用集合1来比对集合2，看看集合1中是否有集合2没有的值）

127.0.0.1:6379[1]> sdiff set myset
(empty array)
127.0.0.1:6379[1]> sdiff myset set
1) "ben"
2) "wu"

#sinter 集合1 集合2（用集合1来比对集合2，看看集合1中有没有集合2中有的值）

127.0.0.1:6379[1]> sinter myset set
1) "meng"
2) "ling"
127.0.0.1:6379[1]> sinter set myset
1) "meng"
2) "ling"