Redis 客戶端可以訂閱任意數量的頻道。

相關函式介紹：

0.publish

將資訊釋出到指定的頻道

1.subscribe

2.psubscribe

3.unsubscribe

4.punsubscribe

例項：

import redis
import time

r = redis.Redis()

while True:
    time.sleep(1)
    r.publish('test1', 'hello')
    r.publish('test2'
 
, 'world')
    r.publish('foo', 'msg from foo')
    r.publish('foo1', 'msg from foo1')
    r.publish('foo2', 'msg from foo2')
    r.publish('bar', 'msg from bar')
    r.publish('bar2', 'msg from bar2')
    r.publish('bar3', 'msg from bar3')
    r.publish('foobar', 'msg from foobar')
    r.publish('foobar2'
 
, 'msg from foobar2')
    r.publish('foobar3', 'msg from foobar3')

import redis

r = redis.Redis()

p = r.pubsub()
p.subscribe(['test1', 'test2', 'test3'])
p.psubscribe(['foo*', 'bar?', 'foobar+'])

for item in p.listen():
    if item['type'] == 'pmessage' or item['type'] == 'message'
 
:
        print(item['channel'])
        print(item['data'])

        p.unsubscribe('test2')