修改本页

命令 客户端 文档 社区 下载 问题 支持 许可

SCARD key

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 the set cardinality (number of elements) of the set stored at key.

返回值

Integer reply: the cardinality (number of elements) of the set, or 0 if key does not exist.

例子

redis> SADD myset "Hello"

(integer) 1

redis> SADD myset "World"

(integer) 1

redis> SCARD myset

(integer) 2

Comments powered by Disqus

This website is open source software developed by Citrusbyte.

The Redis logo was designed by Carlos Prioglio. See more credits.

Sponsored by