redis list类型命令的实现

127.0.0.1:6379> help @list
  BLMOVE source destination LEFT|RIGHT LEFT|RIGHT timeout
  summary: Pop an element from a list, push it to another list and return it; or block until one is available
  since: 6.2.0
  BLMPOP timeout numkeys key [key ...] LEFT|RIGHT [COUNT count]
  summary: Pop elements from a list, or block until one is available
  since: 7.0.0
  BLPOP key [key ...] timeout
  summary: Remove and get the first element in a list, or block until one is available
  since: 2.0.0
  BRPOP key [key ...] timeout
  summary: Remove and get the last element in a list, or block until one is available
  since: 2.0.0
  BRPOPLPUSH source destination timeout
  summary: Pop an element from a list, push it to another list and return it; or block until one is available
  since: 2.2.0
  LINDEX key index
  summary: Get an element from a list by its index
  since: 1.0.0
  LINSERT key BEFORE|AFTER pivot element
  summary: Insert an element before or after another element in a list
  since: 2.2.0
  LLEN key
  summary: Get the length of a list
  since: 1.0.0
  LMOVE source destination LEFT|RIGHT LEFT|RIGHT
  summary: Pop an element from a list, push it to another list and return it
  since: 6.2.0
  LMPOP numkeys key [key ...] LEFT|RIGHT [COUNT count]
  summary: Pop elements from a list
  since: 7.0.0
  LPOP key [count]
  summary: Remove and get the first elements in a list
  since: 1.0.0
  LPOS key element [RANK rank] [COUNT num-matches] [MAXLEN len]
  summary: Return the index of matching elements on a list
  since: 6.0.6
  LPUSH key element [element ...]
  summary: Prepend one or multiple elements to a list
  since: 1.0.0
  LPUSHX key element [element ...]
  summary: Prepend an element to a list, only if the list exists
  since: 2.2.0
  LRANGE key start stop
  summary: Get a range of elements from a list
  since: 1.0.0
  LREM key count element
  summary: Remove elements from a list
  since: 1.0.0
  LSET key index element
  summary: Set the value of an element in a list by its index
  since: 1.0.0
  LTRIM key start stop
  summary: Trim a list to the specified range
  since: 1.0.0
  RPOP key [count]
  summary: Remove and get the last elements in a list
  since: 1.0.0
  RPOPLPUSH source destination
  summary: Remove the last element in a list, prepend it to another list and return it
  since: 1.2.0
  RPUSH key element [element ...]
  summary: Append one or multiple elements to a list
  since: 1.0.0
  RPUSHX key element [element ...]
  summary: Append an element to a list, only if the list exists
  since: 2.2.0

127.0.0.1:6379> lpush k1 a b c d e
(integer) 5
127.0.0.1:6379> lpop k1
"e"
127.0.0.1:6379> lpop k1
"d"

127.0.0.1:6379> lrange k1 0 -1
1) "c"
2) "b"
3) "a"

127.0.0.1:6379> lrange k1 0 -1
1) "f"
2) "e"
3) "d"
4) "c"
5) "b"
6) "a"
127.0.0.1:6379> lindex k1 1
"e"

127.0.0.1:6379> lset k1 3 x
OK
127.0.0.1:6379> lrange k1 0 -1
1) "f"
2) "e"
3) "d"
4) "x"
5) "b"
6) "a"

127.0.0.1:6379> lrange k3 0 -1
 1) "d"
 2) "6"
 3) "a"
 4) "5"
 5) "c"
 6) "4"
 7) "a"
 8) "3"
 9) "b"
10) "2"
11) "a"
12) "1"
127.0.0.1:6379> lrem k3 2 a
(integer) 2
127.0.0.1:6379> lrange k3 0 -1
 1) "d"
 2) "6"
 3) "5"
 4) "c"
 5) "4"
 6) "3"
 7) "b"
 8) "2"
 9) "a"
10) "1"

127.0.0.1:6379> lrange k3 0 -1
 1) "d"
 2) "6"
 3) "5"
 4) "c"
 5) "4"
 6) "3"
 7) "b"
 8) "2"
 9) "a"
10) "1"
127.0.0.1:6379> linsert k3 after 6 a
(integer) 11
127.0.0.1:6379> lrange k3 0 -1
 1) "d"
 2) "6"
 3) "a"
 4) "5"
 5) "c"
 6) "4"
 7) "3"
 8) "b"
 9) "2"
10) "a"
11) "1"

127.0.0.1:6379> llen k3
(integer) 10

127.0.0.1:6379> blpop k1 0

127.0.0.1:6379> blpop k1 0
1) "k1"
2) "a"
(35.77s)

127.0.0.1:6379> lrange k4 0 -1
1) "f"
2) "e"
3) "d"
4) "c"
5) "b"
6) "a"
127.0.0.1:6379> ltrim k4 1 -2
OK
127.0.0.1:6379> lrange k4 0 -1
1) "e"
2) "d"
3) "c"
4) "b"