SISMEMBER key member
相关命令
- SADD
- SCARD
- SDIFF
- SDIFFSTORE
- SINTER
- SINTERSTORE
- SISMEMBER
- SMEMBERS
- SMOVE
- SPOP
- SRANDMEMBER
- SREM
- SSCAN
- SUNION
- SUNIONSTORE
始于1.0.0可用。
时间复杂度: O(1)
Returns if member
is a member of the set stored at key
.
返回值
Integer reply, specifically:
1
if the element is a member of the set.0
if the element is not a member of the set, or ifkey
does not exist.
例子
redis> SADD myset "one"
- (integer) 1
redis> SISMEMBER myset "one"
- (integer) 1
redis> SISMEMBER myset "two"
- (integer) 0
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