HGET – Redis

Available since 2.0.0.

时间复杂度： O(1)

Returns the value associated with field in the hash stored at key.

返回值

Bulk string reply: the value associated with field, or nil when field is not present in the hash or key does not exist.

redis> HSET myhash field1 "foo"

(integer) 1

redis> HGET myhash field1

"foo"

redis> HGET myhash field2

(nil)