Redis's hash operation

Hset key field value function: Set the values of the filed field in key to value note: If there is no field field, add directly, if any, overwrite the value of the original Field field
127.0.0.1:6379> Hset user1 name Lisi
(integer) 1
127.0.0.1:6379> Hset User1 Age 28
(integer) 1
127.0.0.1:6379> hset User1 height 175
(integer) 1

Hmset key field1 value1 [field2 value2 field3 value3 ... fieldn Valuen] Function: Set field1->n field, corresponding value is value1->n (corresponding to PHP understood as  $key = Array (file1=>value1, field2=>value2 .... fieldn=>valuen)) \
127.0.0.1:6379> hmset user2 name Wangwu Age height 160
Ok

Hget key Field action: Returns the value of the Field field in key
127.0.0.1:6379> Hget user1 Name
"Lisi"

Hmget key field1 field2 fieldn function: Returns the value of the Field1 field2 fieldn field in key
127.0.0.1:6379> Hmget User1 name age
1) "Lisi"
2) "28"

Hgetall key function: Returns key, all fields and their values
127.0.0.1:6379> Hgetall User1
1) "Name"
2) "Lisi"
3) "Age"
4) "28"
5) "Height"
6) "175"

 hdel key field action: Delete key in field field 
 127.0.0.1:6379 > Hgetall user1  
 1) "name"  
 2) " Lisi " 
  
 4) "+"  
 5) "height"  
 6 "175"  
 127.0.0.1:6379> Hdel user1 age  
  (integer) 1  
 127.0.0.1:6379> Hgetall user1  
 1) "name"  
 2) "Lisi"  
 3) "height"  
 4) "175"  
  

Hlen key function: Returns the number of elements in key
127.0.0.1:6379> Hlen User1
(integer) 2
127.0.0.1:6379> Hlen User2
(integer) 3

Hexists key field function: Determine if there is a field field in key
127.0.0.1:6379> Hexists user1 Age
(integer) 0
127.0.0.1:6379> hexists user1 Name
(integer) 1

Hincrby key field value action: is to increment the values of the field field in key to integer value
127.0.0.1:6379> Hincrby User2 age 10
(integer) 33
127.0.0.1:6379> Hget User2 Age
"33"

Hincrbyfloat  key field value action: is to increment the values of the field field in key by floating-point value

127.0.0.1:6379> Hincrbyfloat User2 Age 0.5
"33.5"

Hkeys key function: Returns all field in key
127.0.0.1:6379> Hkeys User2
1) "Name"
2) "Age"
3) "Height"

Kvals key function: Returns all the value in key
127.0.0.1:6379> hvals User2
1) "Wangwu"
2) "33"
3) "160"

Redis's hash operation