字符串String

APPEND key value
Append a value to a key

BITCOUNT key [start end]
Count set bits in a string

BITFIELD key [GET type offset] [SET type offset value] [INCRBY type offset increment] [OVERFLOW WRAP|SAT|FAIL]
Perform arbitrary bitfield integer operations on strings

BITOP operation destkey key [key ...]
Perform bitwise operations between strings

BITPOS key bit [start] [end]
Find first bit set or clear in a string

DECR key
Decrement the integer value of a key by one

DECRBY key decrement
Decrement the integer value of a key by the given number

GET key
Get the value of a key

GETBIT key offset
Returns the bit value at offset in the string value stored at key

GETRANGE key start end
Get a substring of the string stored at a key

GETSET key value
Set the string value of a key and return its old value

INCR key
Increment the integer value of a key by one

INCRBY key increment
Increment the integer value of a key by the given amount

INCRBYFLOAT key increment
Increment the float value of a key by the given amount

MGET key [key ...]
Get the values of all the given keys

MSET key value [key value ...]
Set multiple keys to multiple values

MSETNX key value [key value ...]
Set multiple keys to multiple values, only if none of the keys exist

PSETEX key milliseconds value
Set the value and expiration in milliseconds of a key

SET key value [EX seconds|PX milliseconds|KEEPTTL] [NX|XX] [GET]
Set the string value of a key

SETBIT key offset value
Sets or clears the bit at offset in the string value stored at key

SETEX key seconds value
Set the value and expiration of a key

SETNX key value
Set the value of a key, only if the key does not exist

SETRANGE key offset value
Overwrite part of a string at key starting at the specified offset

TRALGO LCS algo-specific-argument [algo-specific-argument ...]
Run algorithms (currently LCS) against strings

STRLEN key
Get the length of the value stored in a key