1、启动redis服务，redis-server 通过哪个配置文件启动
redis-server kconfig/redis.conf
2、客户端连接
redis-cli -p 6379
3、select
redis默认有16个数据库，相互切换用select，默认为第0个数据库，select 0
select 1
4、keys *，查看redis中的存储的key
127.0.0.1:6379> keys *
1) "myhash"
2) "mylist"
3) "name"
4) "counter:__rand_int__"
5) "key:__rand_int__"
127.0.0.1:6379>
5、flushdb和flushall清空当前表和清空所有
127.0.0.1:6379> keys *
1) "myhash"
2) "mylist"
3) "name"
4) "counter:__rand_int__"
5) "key:__rand_int__"
127.0.0.1:6379> keys *
1) "myhash"
2) "mylist"
3) "name"
4) "counter:__rand_int__"
5) "key:__rand_int__"
127.0.0.1:6379> flushdb
OK
127.0.0.1:6379> keys *
(empty array)
127.0.0.1:6379>
127.0.0.1:6379> flushall
OK
清空所有表
6、dbsize查看db大小
127.0.0.1:6379> dbsize
(integer) 0
127.0.0.1:6379> set name zhangsan
OK
127.0.0.1:6379> dbsize
(integer) 1
127.0.0.1:6379>
7、exists key判断该key是否存在
127.0.0.1:6379> exists name
(integer) 1
127.0.0.1:6379> get name
"zhangsan"
8、move key db 删除该db的key对应的值，db为1代表当前数据库
127.0.0.1:6379> move name 1
(integer) 1
127.0.0.1:6379> keys *
(empty array)
9、expire name second 在second 秒后key为name的值过期
127.0.0.1:6379> set name wang
OK
127.0.0.1:6379> get name
"wang"
127.0.0.1:6379> expire name 5
(integer) 1
127.0.0.1:6379> get name
(nil)
127.0.0.1:6379>
10、ttl查看当前key的过期时间
127.0.0.1:6379> ttl name
(integer) 6
127.0.0.1:6379> ttl name
(integer) 2
127.0.0.1:6379>
11、type key 查看key的数据类型
127.0.0.1:6379> set name zhangsan
OK
127.0.0.1:6379> type name
string
127.0.0.1:6379>
String类型常用方法
12、append 追加字符串
127.0.0.1:6379> get name
"zhangsan"
127.0.0.1:6379> append name 3333
(integer) 12
127.0.0.1:6379> get name
"zhangsan3333"
127.0.0.1:6379>
13、strlen查看字符串的长度
127.0.0.1:6379> strlen name
(integer) 12
127.0.0.1:6379> get name
"zhangsan3333"
127.0.0.1:6379>
14、incr自增1
127.0.0.1:6379> set views 0
OK
127.0.0.1:6379> incr views
(integer) 1
127.0.0.1:6379> get views
"1"
127.0.0.1:6379> incr views
(integer) 2
127.0.0.1:6379> get views
"2"
15、decr自减1
127.0.0.1:6379> get views
"3"
127.0.0.1:6379> decr views
(integer) 2
127.0.0.1:6379> get views
"2"
16、decrby key step与incrby key step 减少增加，可设置步长，指定增量
127.0.0.1:6379> get views
"2"
127.0.0.1:6379> incrby views 2
(integer) 4
127.0.0.1:6379> get views
"4"
127.0.0.1:6379> decrby views 3
(integer) 1
127.0.0.1:6379> get views
"1"
17、getrange key start end 截取字符串（end为-1，代表结尾）
127.0.0.1:6379> get name
"zhangsan3333"
127.0.0.1:6379> getrange name 3 5
"ngs"
127.0.0.1:6379> getrange name 3 8
"ngsan3"
18、setrange key start value 指定位置替换指定的值
127.0.0.1:6379> get name
"zhangsan3333"
127.0.0.1:6379> setrange name 2 KKKK
(integer) 12
127.0.0.1:6379> get name
"zhKKKKan3333"
19、setex(set with expire) #设置过期时间 setnx(set if not exist) #不存在设置 (在分布式锁中常用)
127.0.0.1:6379> setex key1 50 ceshi
OK
127.0.0.1:6379> get key1
"ceshi"
127.0.0.1:6379> ttl key1
(integer) 39
127.0.0.1:6379> keys *
1) "views"
2) "key1"
3) "name"
127.0.0.1:6379> setnx key2 ceshi
(integer) 1
127.0.0.1:6379> setnx key2 ceshis
(integer) 0
127.0.0.1:6379> get key2
"ceshi"
127.0.0.1:6379>
20、mset,mget批量设置和获取值
127.0.0.1:6379> mset k1 v1 k2 v2 k3 v3
OK
127.0.0.1:6379> mget k1 k2 k3
1) "v1"
2) "v2"
3) "v3"
21、msetnx 为原子性操作，失败的话全部失败。
127.0.0.1:6379> msetnx k1 v1 k6 v6 k8 v8
(integer) 0
22、getset 先get后set #如果不存在，返回nil，如果存在，返回之前的值，并设置新的值
127.0.0.1:6379> get k1
"v1"
127.0.0.1:6379> get m2
(nil)
127.0.0.1:6379> getset m2 hello
(nil)
127.0.0.1:6379> getset k1 java
"v1"
127.0.0.1:6379> get k1
"java"
127.0.0.1:6379>
list型常用方法
23、lpush 将一个值或者多个值插入到列表头部
127.0.0.1:6379> lpush lists test
(integer) 4
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "three"
3) "two"
4) "one"
127.0.0.1:6379>
24、lrange遍历list数组
127.0.0.1:6379> lrange lists 0 -1 #获取list中的所有值
1) "test"
2) "three"
3) "two"
4) "one"
127.0.0.1:6379> lrange lists 2 5 #通过区间获取具体的值
1) "two"
2) "one"
25、rpush在列表的尾部插入值
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "three"
3) "two"
4) "one"
127.0.0.1:6379> rpush lists end
(integer) 5
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "three"
3) "two"
4) "one"
5) "end"
26、lpop rpop 移除列表的值
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "three"
3) "two"
4) "one"
5) "end"
127.0.0.1:6379> lpop lists
"test"
127.0.0.1:6379> lrange lists 0 -1
1) "three"
2) "two"
3) "one"
4) "end"
27、lindex 获取下标值
127.0.0.1:6379> lrange lists 0 -1
1) "three"
2) "two"
3) "one"
4) "end"
127.0.0.1:6379> lindex lists 2
"one"
28、llen获取数组的长度
127.0.0.1:6379> llen lists
(integer) 4
29、lrem 移除指定的值，移除list集合中指定个数的value，精确匹配
127.0.0.1:6379> lrange lists 0 -1
1) "three"
2) "two"
3) "one"
4) "end"
127.0.0.1:6379> lpush lists one
(integer) 5
127.0.0.1:6379> lrange lists 0 -1
1) "one"
2) "three"
3) "two"
4) "one"
5) "end"
127.0.0.1:6379> lrem lists 2 one
(integer) 2
127.0.0.1:6379> lrange lists 0 -1
1) "three"
2) "two"
3) "end"
127.0.0.1:6379> lrem lists 2 two
(integer) 1
127.0.0.1:6379> lrange lists 0 -1
1) "three"
2) "end"
30、ltrim通过下标截取指定的长度
127.0.0.1:6379> lrange lists 0 -1
1) "two"
2) "one"
3) "three"
4) "end"
127.0.0.1:6379> ltrim lists 0 2
OK
127.0.0.1:6379> lrange lists 0 -1
1) "two"
2) "one"
3) "three"
31、rpoplpush移除列表的最后一个元素，将他移动到新的列表中
127.0.0.1:6379> lrange lists 0 -1
1) "two"
2) "one"
3) "three"
127.0.0.1:6379> rpoplpush lists otherlists
"three"
127.0.0.1:6379> lrange lists 0 -1
1) "two"
2) "one"
127.0.0.1:6379> lrange otherlists 0 -1
1) "three"
32、lset将列表中指定下标替换为指定的值（更新）不存在下标报错，存在更新
127.0.0.1:6379> lrange lists 0 -1
1) "two"
2) "one"
127.0.0.1:6379> lset lists 0 test
OK
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "one"
127.0.0.1:6379> lset lists 3 hello
(error) ERR index out of range
33、linsert 将某个具体的value插入到列表某个元素之前或之后
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "one"
127.0.0.1:6379> linsert lists before one adds
(integer) 3
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "adds"
3) "one"
127.0.0.1:6379> linsert lists after one addss
(integer) 4
127.0.0.1:6379> lrange lists 0 -1
1) "test"
2) "adds"
3) "one"
4) "addss"
127.0.0.1:6379>
set型常用方法
34、sadd 给set中添加元素
127.0.0.1:6379> clear
127.0.0.1:6379> sadd keys one
(integer) 1
127.0.0.1:6379> sadd keys two
(integer) 1
127.0.0.1:6379> sadd keys hello
35、smembers 查看set中的元素
127.0.0.1:6379> smembers keys
1) "one"
2) "hello"
3) "two"
127.0.0.1:6379>
36、sismember 查看set元素中是否存在该元素
127.0.0.1:6379> smembers keys
1) "one"
2) "hello"
3) "two"
127.0.0.1:6379> sismember keys one
(integer) 1
127.0.0.1:6379> sismember keys test
(integer) 0
127.0.0.1:6379>
37、scard 获取set集合中元素的个数
127.0.0.1:6379> scard keys
(integer) 3
38、srem 移除set中的指定元素
127.0.0.1:6379> smembers keys
1) "one"
2) "hello"
3) "two"
127.0.0.1:6379> srem keys one
(integer) 1
127.0.0.1:6379> smembers keys
1) "hello"
2) "two"
39、srandmember 随机获取set中的值
127.0.0.1:6379> srandmember keys
"hello"
127.0.0.1:6379> srandmember keys
"two"
127.0.0.1:6379> srandmember keys
"two"
127.0.0.1:6379> srandmember keys 2
1) "hello"
2) "two"
40、spop 随机删除元素
127.0.0.1:6379> spop keys
"two"
127.0.0.1:6379> spop keys
"hello"
127.0.0.1:6379>
41、
