华夏棋牌

目录 搜索
Cluster cluster addslots(集群 槽位) cluster count failure reports(集群计数掉落败申报) 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
文字

TTL key

自1.0.0起可用。

时间严重年夜度: O(1)

前往具有超时的密钥的残剩生计时间。这类内省功效允许Redis客户端检查给定密钥将一连成为数据集的一部门的秒数。

在 Redis 2.6 或更高版本中,-1华夏棋牌假定密钥不存在或许密钥存在但没有联系关系到期,则该敕令将前往。

从 Redis 2.8 泉源,弱点发生时的前往值发生了变换:

  • -2假定该键不存在,则该敕令前往。

  • -1华夏棋牌假定密钥存在但没有联系关系过时,则该敕令前往。

另请参阅以毫秒分辨率前往类似信息的 PTTL 敕令(仅在 Redis 2.6 或更高版本中可用)。

前往值

整数回复:TTL 以秒为单元,或许为负值以指导弱点(请参阅上陈述明)。

例子

redis>  SET mykey "Hello" "OK" 

redis>  EXPIRE mykey 10 (integer) 1 

redis>  TTL mykey (integer) 10

上一篇: 下一篇: