SREM
移除集合中一个或者多个元素,返回被移除的元素个数
Command
$ redis-cli.exe -h 127.0.0.1 -p 6379
127.0.0.1:6379> sadd s1 1 2 3 4
(integer) 4
127.0.0.1:6379> srem s1 3 4
(integer) 2
127.0.0.1:6379> smembers s1
1) "1"
2) "2"
Code
func srem(c redis.Conn) {
defer c.Do("DEL", "s1")
c.Do("SADD", "s1", 1, 2, 3, 4)
removeCount, err := c.Do("SREM", "s1", 3, 4)
if err != nil {
colorlog.Error(err.Error())
return
}
fmt.Println("The number of removed members is:", removeCount)
remainingMembers, _ := redis.Strings(c.Do("SMEMBERS", "s1"))
fmt.Println("The remaining members are as following:")
for _, v := range remainingMembers {
fmt.Println(v)
}
}
Output
$ go run main.go
The number of removed members is: 2
The remaining members are as following:
1
2
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