Redis 字符串(String)¶
Get¶
格式:
GET key
说明:
Available since 1.0.0.
Time complexity: O(1)
实例:
redis> GET nonexisting
(nil)
redis> SET mykey "Hello"
"OK"
redis> GET mykey
"Hello"
其他¶
简单的赋值、取值set, get, getset:
set server:name "fido"//设值
get server:name => "fido"//取值
getset server:name "change" => "fido"//先取值，再设值
get server:name => "change"
自增，自减:incr, incrby, decr, decrby, del:
set num 10
incr num => 11//自增1
incr num => 12
incrby num 10 => 22//自增10
decr num =>21
decrby num 10 =>11
del num//删除变量
incr num => 1
有生命周期的变量:
set source "redis"
expire source 120//把变量source生命周期设为120秒
ttl source => 119,118...//剩余生命时间