In the same process of go question bank · 9, what is the problem with sending and receiving data at the same time for unbuffered channels

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「 answer 」（engine）

In the same process , No unbuffered channel Send and receive data at the same time , If you do so, you will directly report an error deadlock .

For an unbuffered channel for , Only when one party sends data and the other receives data between different processes will it not be blocked .channel When there is no buffer , Sending blocks until data is received , Receive blocking until data is read .