3) "2"
4) "1"
对list进行截取
redis 127.0.0.1:6379> ltrim mylist 0 2
OK
redis 127.0.0.1:6379> lrange mylist 0 -1
1) "4"
2) "3"
3) "2"
获取指定角标的值
redis 127.0.0.1:6379> lindex mylist 1
"3"
没有插入成功
redis 127.0.0.1:6379> linsert mylist before 0 5
(integer) -1
redis 127.0.0.1:6379> lrange mylist 0 -1
1) "4"
2) "3"
3) "2"
在第一个值为4的后面插入5
redis 127.0.0.1:6379> linsert mylist before 4 5
(integer) 4
redis 127.0.0.1:6379> lrange mylist 0 -1
1) "5"
2) "4"
3) "3"
4) "2"
redis 127.0.0.1:6379> linsert mylist before 5 4
(integer) 5
redis 127.0.0.1:6379> linsert mylist before 4 5
(integer) 6
redis 127.0.0.1:6379> lrange mylist 0 -1
1) "5"
2) "4"
3) "5"
4) "4"
5) "3"
6) "2"
在第一个值为4后面插入6
redis 127.0.0.1:6379> linsert mylist after 4 6
(integer) 7
redis 127.0.0.1:6379> lrange mylist 0 -1
1) "5"
2) "4"
3) "6"
4) "5"
5) "4"
6) "3"
7) "2"
?
set集合
创建一个set集合
redis 127.0.0.1:6379> sadd myset 1 2 3 4
(integer) 4
redis 127.0.0.1:6379> type myset
set
添加一个重复值,返回添加成功个数为0
redis 127.0.0.1:6379> sadd myset 2
(integer) 0
显示所有的元素
redis 127.0.0.1:6379> smembers myset
1) "1"
2) "2"
3) "3"
4) "4"
redis 127.0.0.1:6379> sadd myset 5
(integer) 1
redis 127.0.0.1:6379> smembers myset
1) "1"
2) "2"
3) "3"
4) "4"
5) "5"
redis 127.0.0.1:6379> sadd myset 5
(integer) 0
redis 127.0.0.1:6379> smembers myset
1) "1"
2) "2"
3) "3"
4) "4"
5) "5"
弹栈,弹出排序后第一个元素
redis 127.0.0.1:6379> spop myset
"1"
redis 127.0.0.1:6379> smembers myset
1) "2"
2) "3"
3) "4"
4) "5"
判断是否存在该元素
redis 127.0.0.1:6379> sismember myset 4
(integer) 1 存在
redis 127.0.0.1:6379> sismember myset 6
(integer) 0 不存在
redis 127.0.0.1:6379> srandmember myset
"4"
redis 127.0.0.1:6379> smembers myset
1) "2"
2) "3"
3) "4"
4) "5"
随机去set集合中一个元素
redis 127.0.0.1:6379> srandmember myset
"4"
redis 127.0.0.1:6379> srandmember myset
"3"
redis 127.0.0.1:6379> srandmember myset
"5"
求set集合的长度
redis 127.0.0.1:6379> scard myset
(integer) 4
redis 127.0.0.1:6379> sadd myset1 1 2 3 6 7
(integer) 5
redis 127.0.0.1:6379> smembers myset1
1) "1"
2) "2"
3) "3"
4) "6"
5) "7"
求第一个集合和第二个集合的差集,第一个有第二个没有的元素
redis 127.0.0.1:6379> sdiff myset myset1
1) "4"
2) "5"
redis 127.0.0.1:6379> sdiff myset1 myset
1) "6"
2) "7"
求两个集合的交集
redis 127.0.0.1:6379> sinter myset myset1
1) "1"
2) "2"
3) "3"
求两个集合的并集
redis 127.0.0.1:6379> sunion myset myset1
1) "1"
2) "2"
3) "3"
4) "4"
5) "5"
6) "6"
7) "7"
redis 127.0.0.1:6379> smembers myset
1) "1"
2) "2"
3) "3"
4) "6"
5) "7"
redis 127.0.0.1:6379> smembers myset1
1) "1"
2) "2"
3) "3"
4) "6"
5) "7"
redis 127.0.0.1:6379> sadd myset 8 9
(integer) 2
redis 127.0.0.1:6379> smembers myset
1) "1"
2) "2"
3) "3"
4) "6"
5) "7"
6) "8"
7) "9"
求两个集合的交集,并且把结果存到uset2集合里面去
redis 127.0.0.1:6379> sunionstore uset2 myset myset1
(integer) 7
redis 127.0.0.1:6379> smembers uset2
1) "1"
2) "2"
3) "3"
4) "6"
5) "7"
6) "8"
7) "9"
?
zset有序集合
创建有序集合
redis 127.0.0.1:6379> zadd zset1 1 one 2 two 3 three
(integer) 3
求有序集合的长度
redis 127.0.0.1:6379> zcard zset1
(integer) 3
redis 127.0.0.1:6379> zadd zset1 4 four
(integer) 1
redis 127.0.0.1:6379> zcard zset1
(integer) 4
查指定角标范围的集合值
redis 127.0.0.1:6379> zrange zset1 1 1
1) "two"
redis 127.0.0.1:6379> zrange zset1 1 2
1) "two"
2) "three"
redis 127.0.0.1:6379> zrange zset1 0 2
1) "one"
2) "two"
3) "three"
查询权重值为1-1之间的值得个数
redis 127.0.0.1:6379> zcount zset1 1 1
(integer) 1
redis 127.0.0.1:6379> zadd zset1 1 one1
(integer) 1
查询权重值为1-1之间的值得个数,由于又添加了一个权重为1的值,所以会有2个
redis 127