redis

查看数据存储类型

127.0.0.1:6379> object encoding name
"embstr"
127.0.0.1:6379> object encoding age
"int"

127.0.0.1:6379> set name "ddddddddddllljjddddddddddddddddddddddddd"
OK
127.0.0.1:6379> object encoding name
"embstr"

127.0.0.1:6379> strlen name
(integer) 40
127.0.0.1:6379> append name "dslkfjsljflsdjflsjdlfjsdlfjsldjflsjdlfsf"
(integer) 80
127.0.0.1:6379

setbit 

127.0.0.1:6379> set name abc
OK
127.0.0.1:6379> setbit name 6 1
(integer) 0
127.0.0.1:6379> setbit name 7 0
(integer) 1
127.0.0.1:6379> get name
"bbc"