Redis基础教程第3节 Strings

tangym@ubuntu:~$ cd redis-2.8.12tangym@ubuntu:~/redis-2.8.12$ cd srctangym@ubuntu:~/redis-2.8.12/src$ redis-cliSet

redis 127.0.0.1:6379> get name
"lijie"
redis 127.0.0.1:6379> set name michael
OK

Get

redis 127.0.0.1:6379> get name
"michael"
redis 127.0.0.1:6379> setnx name micahel
(integer) 0

Setnx

redis 127.0.0.1:6379> setnx age 10
(integer) 1
redis 127.0.0.1:6379> setex date 10 2010
OK
redis 127.0.0.1:6379> get date
"2010"
redis 127.0.0.1:6379> get date
(nil)
redis 127.0.0.1:6379> set email michael@unisys.com
OK
redis 127.0.0.1:6379> get email
"michael@unisys.com"

setrange

redis 127.0.0.1:6379> setrange email 8 qq.com
(integer) 18
redis 127.0.0.1:6379> get email
"michael@qq.com.com"

mset

redis 127.0.0.1:6379> mset key1 m1 key2 m2
OK
redis 127.0.0.1:6379> get key1
"m1"
redis 127.0.0.1:6379> get key2
"m2"
redis 127.0.0.1:6379> get key2
"m2"
redis 127.0.0.1:6379> get key3
(nil)

msetnx

redis 127.0.0.1:6379> msetnx key4 unisys.com key5 jasson.net key3 m3 key2 m2
(integer) 0
redis 127.0.0.1:6379> get key4
(nil)
redis 127.0.0.1:6379> msetnx key4 unisys.com key5 jasson.net key3 m3
(integer) 1
redis 127.0.0.1:6379> get key1
"m1"

getrange

redis 127.0.0.1:6379> getrange key1 0 1
"m1"
redis 127.0.0.1:6379> getrange key1 0 0
"m"

getset

redis 127.0.0.1:6379> getset key1 20
"m1"

mget

redis 127.0.0.1:6379> mget key1 key2 key3 key4 key5
1) "20"
2) "m2"
3) "m3"
4) "unisys.com"
5) "jasson.net"

incr

redis 127.0.0.1:6379> incr key6
(integer) 101
redis 127.0.0.1:6379> incr key6
(integer) 102
redis 127.0.0.1:6379> get key6
"102"

incrby

redis 127.0.0.1:6379> incrby key6 1
(integer) 103
redis 127.0.0.1:6379> incrby key6 2
(integer) 105
redis 127.0.0.1:6379> incrby key6 -2
(integer) 103

decr/decrby

redis 127.0.0.1:6379> decr key6 1
(error) ERR wrong number of arguments for 'decr' command
redis 127.0.0.1:6379> decr key6
(integer) 102
redis 127.0.0.1:6379> decrby key6 1
(integer) 101

append

redis 127.0.0.1:6379> get name
"michael"
redis 127.0.0.1:6379> append name .net
(integer) 11
redis 127.0.0.1:6379> get name
"michael.net"

strlen redis 127.0.0.1:6379> strlen name(integer) 11