And, finally, unlike streams a zero byte read does not indicate that the message has been fully received.

最后，不像流那样，读取了零字节并不表明已经完全接收了消息。

youdao

If a server anticipates handling a very high number of concurrent clients, the server can post a single zero byte receive on each connection.

如果一个服务器能够预先估计可能会产生的最大并发连接数，服务器可以投递一个使用零缓冲区的receive在每一个连接上。

youdao

This is a zero byte message that tells the client that it's done with the "Hello" process and indicate that the server won't be asking the client for a certificate.

这是一个0字节的消息，它告诉客户端“hello”过程已经完成，也就意味着服务端将不验证客户端的证书。

youdao

And because there are a billion bytes accessible to us, that's-- essentially means well we can just call that byte number zero.

由于有十亿个字节的存储量供我们使用-,也就是说，我们有0号字节。

哈佛公开课 - 计算机科学课程节选

Only the operating system has controlling of byte zero NULL in the computer's RAM and so if a function ever returns null, aka zero, well, something must have gone wrong because that can't possibly belong to me that memory because by human convention zero is owned by the operating system; not by a program I wrote.

只用操作系统在内存中能够控制,字节0，并且如果一个函数返回，或者说0，好的，可能出错了,因为那可能是不属于我的内存,因为惯例上，0是由操作系统拥有的,而不是由我的程序拥有的。

哈佛公开课 - 计算机科学课程节选

So it does that for us so that you can get away with just knowing the address of the first byte and it will make sure that you know when to stop by including the special value so, in fact, get the string if you type in a three-letter word, we allocate four bytes no matter what because we need an additional byte 0 for this special sentinel value back slash zero at the very end.

它为我们做了这些事情，这样我们就可以,通过第一个字节的地址,它还可以通过包含一个特殊的值,来保证在哪里停止，如果你输入了一个三个字母的单词,就可以获得那个字符串，不管怎样，我们分配四个字节,因为我们在末端需要一个额外的字节,来保存这个特殊的标志值--反斜杠。

哈佛公开课 - 计算机科学课程节选