## (1)`订阅一个频道`channel频道名称 ~~~ subscribe channel [channel ...] ~~~ ## (2)`订阅一类频道`pattern某一类如：it\* 以it开头的频道 ~~~ Psubscribe pattern [pattern ...] ~~~ ## (3)`发布内容` ~~~ publish channel [channel ...] ~~~ ## (4)`退订一个频道` ~~~ unsubscribe [channel [channel ...]] ~~~ ## (5)`退订一类频道` ~~~ Punsubscribe [channel [channel ...]] ~~~ ## (6)`查看当前所有被监听的频道` ~~~ pubsub ~~~