127.0.0.1:6379> set k3 v3 //設置值
OK
127.0.0.1:6379> get k3 //獲取值"v3"127.0.0.1:6379> get k4 //獲取不存在的值,返回nil(nil)127.0.0.1:6379> getset k8 vv8 //先獲取再設置值,返回獲取的值"v8"127.0.0.1:6379> get k8
"vv8"
127.0.0.1:6379> incr k4 //一定要是數字才能進行加減(integer)2127.0.0.1:6379> get k4
"2"127.0.0.1:6379> decr k4
(integer)1127.0.0.1:6379> get k4
"1"127.0.0.1:6379> incrby k4 2(integer)3127.0.0.1:6379> get k4
"3"127.0.0.1:6379> incrby k4 2(integer)5127.0.0.1:6379> decrby k4 2(integer)3127.0.0.1:6379> get k4
"3"
5 設置過期時間
127.0.0.1:6379> setex k5 10 v5 //(set with expire) 語法:setex key time value
OK
127.0.0.1:6379> get k5
"v5"127.0.0.1:6379> ttl k5
(integer)3127.0.0.1:6379> ttl k5
(integer)-2