1.賦值
set key value
如果key已存在，則value被新值覆蓋
localhost:6379> set name yanlei
ok
get key value
localhost:6379> get name
"yanlei"
incr key (key的value必須為數字)
localhost:6379> get name
"yanlei"
localhost:6379> set index 1
oklocalhost:6379> get index
"1"localhost:6379> incr index
(integer) 2
localhost:6379> incr index
(integer) 3
localhost:6379> get index
"3"localhost:6379> set name yanlei
oklocalhost:6379> incr name
(error) err value is not an integer or out of range//非數字報錯
incrby key num
localhost:6379> set index 1
oklocalhost:6379> incrby index 5
(integer) 6
decr key
localhost:6379> set index 10
oklocalhost:6379> decr index
(integer) 9
decrby key num
localhost:6379> set index 10
oklocalhost:6379> decrby index 6
(integer) 4
incrbyfloat key floatvalue
127.0.0.1:6379> set price 7.7
ok127.0.0.1:6379> incrbyfloat price 1.1
"8.8"
localhost:6379> set city shengyang
ok(integer) 18
localhost:6379> get city
"shengyang of china"
strlen key
localhost:6379> set money 123456
oklocalhost:6379> strlen money
(integer) 6
mset key1 value1 key2 value2 ....
mget key1 key2 ...
localhost:6379> mset brand focus color block price 120000
oklocalhost:6379> mget brand color price
1) "focus"
2) "block"
3) "120000"
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