redis基本命令操作

[花椒C]

订阅频道之后取消订阅为什么pubsub channels之后还会有订阅的频道，情况如下：

127.0.0.1:6379> pubsub channels
1) "tt"
2) "zz"
3) "aa"
127.0.0.1:6379> unsubscribe "zz"
1) "unsubscribe"
2) "zz"
3) (integer) 0
127.0.0.1:6379> pubsub channels
1) "tt"
2) "zz"
3) "aa"