Set / 集合

• SADD key member [member …]
• SCARD key
• SDIFF key [key …]
• SDIFFSTORE destination key [key …]
• SINTER key [key …]
• SINTERSTORE destination key [key …]
• SISMEMBER key member
• SMEMBERS key
• SMOVE source destination member
• SPOP key
• SRANDMEMBER key [count]
• SREM key member [member …]
• SSCAN key cursor [MATCH pattern] [COUNT count]
• SUNION key [key …]
• SUNIONSTORE destination key [key …]