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Redis publish subscribe command line implementation
2022-07-05 06:07:00 【A light wind and light clouds】
- Open a client subscription channel1
SUBSCRIBE channel1

2、 Open another client , to channel1 Release the news hello
publish channel1 hello

Back to 1 Is the number of subscribers
Open the first client to see the sent message

notes : Published messages are not persistent , If the subscription client does not receive hello, Only messages published after subscription can be received
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