redis 篇 - set

set

• 无序集合

• sadd key value

  127.0.0.1:6379[7]> sadd s 3
  (integer) 1
  127.0.0.1:6379[7]> smembers s
  1) "1"
  2) "2"
  3) "3"
  127.0.0.1:6379[7]>
  

• scard

• sdiff

  127.0.0.1:6379[7]> scard s
  (integer) 3
  127.0.0.1:6379[7]> sadd s1 1
  (integer) 1
  127.0.0.1:6379[7]> sdiff s1 s
  (empty list or set)
  127.0.0.1:6379[7]> sdiff s s1
  1) "2"
  2) "3"
  127.0.0.1:6379[7]>