无涯教程-Redis - SDIFF命令函数

Redis SDIFF 命令返回一个集合与给定集合的差集的元素.

SDIFF - 返回值

返回数组，结果集的元素.

SDIFF - 语法

以下是Redis SDIFF 命令的基本语法。

redis 127.0.0.1:6379> SDIFF FIRST_KEY OTHER_KEY1..OTHER_KEYN

SDIFF - 示例

redis 127.0.0.1:6379> SADD myset "hello" 
(integer) 1 
redis 127.0.0.1:6379> SADD myset "foo" 
(integer) 1 
redis 127.0.0.1:6379> SADD myset "bar" 
(integer) 1 
redis 127.0.0.1:6379> SADD myset2 "hello" 
(integer) 1 
redis 127.0.0.1:6379> SADD myset2 "Learnfk" 
(integer) 1 
redis 127.0.0.1:6379> SDIFF myset myset2 
1) "foo" 
2) "bar" 

参考链接

https://www.learnfk.com/redis/sets-sdiff.html