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docs: 更新文档描述及typo错误 #5

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Merged
aceld merged 3 commits into from
Mar 6, 2023
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docs: 更新文档描述及typo错误 #5

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9531fb1
docs: update channel
tangx Apr 16, 2021
ff2aa00
docs: 更新口诀
tangx Apr 16, 2021
5b67179
docs: 修改了一些排版问题
tangx Apr 16, 2021
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docs: update channel
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@tangx
tangx committed Apr 16, 2021
commit 9531fb11d47663b62d434f16e4849fbfab42141b
5 changes: 2 additions & 3 deletions 5、channel.md
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Expand Up @@ -12,14 +12,13 @@

* 给一个已经关闭的 channel 发送数据，引起 panic

* 从一个已经关闭的 channel 接收数据，如果缓冲区中为空，则返回一个零值
* 从一个已经关闭的 channel 接收数据，如果缓冲区中为空，则返回**一个零值 和 false** `val,ok:= <-ch1`

* 无缓冲的channel是同步的，而有缓冲的channel是非同步的

以上5个特性是死东西，也可以通过口诀来记忆：“空读写阻塞，写关闭异常，读关闭空零”。



![](images/169-channel异常情况总结.png)


> 执行下面的代码发生什么？
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Binary file added images/169-channel异常情况总结.png
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