某些字符比其他字符占用更多字节吗？ [英] Do certain characters take more bytes than others?

问题描述

我不是很有经验的较低级别的东西，如一个字符的多少字节。我尝试找出一个字符是否等于一个字节，但没有成功。

I'm not very experienced with lower level things such as howmany bytes a character is. I tried finding out if one character equals one byte, but without success.

我需要设置一个分隔符用于服务器和客户端之间的套接字连接。此分隔符必须尽可能小（以字节为单位），以最小化带宽。

I need to set a delimiter used for socket connections between a server and clients. This delimiter has to be as small (in bytes) as possible, to minimize bandwidth.

当前分隔符为＃。

推荐答案

这取决于使用什么字符编码来转换字符和字节

It depends on what character encoding you use to translate between characters and bytes (which are not at all the same thing):

• 在ASCII或ISO 8859中，每个字符由一个字节表示


• 在UTF-8中，每个字符使用1到4个字节。


• 在ISO 2022中，更复杂

US-ASCII字符（只有＃ UTF-8，这是允许多字节字符的最流行的编码。

US-ASCII characters (of whcich # is one) will take only 1 byte in UTF-8, which is the most popular encoding that allows multibyte characters.

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