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Cluster cluster addslots(集群 槽位) cluster count failure reports(集群计数失败报告) cluster countkeysinslot cluster delslots cluster failover cluster forget cluster getkeysinslot cluster info cluster keyslot(集群键槽) cluster meet cluster nodes(集群节点) cluster replicate(集群复制) cluster reset(集群重置) cluster saveconfig cluster set config epoch cluster setslot cluster slaves cluster slots readonly readwrite Connection auth echo ping quit select swapdb Geo geoadd geodist geohash geopos georadius georadiusbymember Hashes hdel hexists hget hgetall hincrby hincrbyfloat hkeys hlen hmget hmset hscan hset hsetnx hstrlen hvals HyperLogLog pfadd pfcount pfmerge Keys del dump exists expire expireat keys migrate move object persist pexpire pexpireat pttl randomkey rename renamenx restore scan sort touch ttl type unlink wait Lists blpop brpop brpoplpush lindex linsert llen lpop lpush lpushx lrange lrem lset ltrim rpop rpoplpush rpush rpushx Pub/Sub psubscribe publish pubsub punsubscribe subscribe unsubscribe Scripting eval evalsha script debug script exists script flush script kill script load Server bgrewriteaof bgsave client getname client kill client list client pause client reply client setname command command count command getkeys command info config get config resetstat config rewrite config set dbsize debug object debug segfault flushall flushdb info lastsave monitor role save shutdown slaveof slowlog time Sets sadd scard sdiff sdiffstore sinter sinterstore sismember smembers smove spop srandmember srem sscan sunion sunionstore Sorted Sets zadd zcard zcount zincrby zinterstore zlexcount zrange zrangebylex zrangebyscore zrank zrem zremrangebylex zremrangebyrank zremrangebyscore zrevrange zrevrangebylex zrevrangebyscore zrevrank zscan zscore zunionstore Strings append bitcount bitfield bitop bitpos decr decrby get getbit getrange getset incr incrby incrbyfloat mget mset msetnx psetex set setbit setex setnx setrange strlen Transactions discard exec multi unwatch watch
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LPUSH key value [value ...]

自1.0.0起可用。

时间复杂度: O(1)

将所有指定值插入存储在列表头部的位置key。如果key不存在,则在执行推送操作之前将其创建为空列表。当key保存不是列表的值时,将返回错误。

可以使用单个命令调用来推送多个元素,只需在命令末尾指定多个参数即可。元素被一个接一个地插入列表头部,从最左边的元素到最右边的元素。因此,例如,该命令LPUSH mylist a b c将导致包含c第一个元素,b第二个元素和a第三个元素的列表。

返回值

整数回复:推送操作后列表的长度。

历史

  • >= 2.4:接受多个value参数。在2.4以前的Redis版本中,可以为每个命令推送一个值。

例子

redis>  LPUSH mylist "world" (integer) 1 

redis>  LPUSH mylist "hello" (integer) 2 

redis>  LRANGE mylist 0 -1 1) "hello" 2) "world"

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