是否所有汉字字符在UTF-8 3个字节长？ [英] Are all Kanji characters in UTF-8 3 bytes long?

问题描述

有人可以在UTF-8中确认汉字中的所有汉字字符都为3个字节长吗？

Can someone please confirm that all Kanji characters in Chinese are 3 bytes long in UTF-8?

推荐答案

汉字/汉字字符位于U + 4E00和U + 9FFF之间的CJK Unified Ideographs块中，并且在UTF-8中占用3个字节。 （日语平假名和片假名字符也需要3个字节。）

The commonly used Hanzi/Kanji characters are in the "CJK Unified Ideographs" block between U+4E00 and U+9FFF, and take 3 bytes in UTF-8. (The Japanese Hiragana and Katakana characters also take 3 bytes.)

但是，CJK Unified Ideographs Extension B

However, there are also some very rarely-used characters in the "CJK Unified Ideographs Extension B" and "CJK Compatibility Ideographs Supplement" blocks, which take 4 bytes in UTF-8.

另请注意，中文文本通常包含ASCII字符，如数字0-9。

Also be aware that Chinese text often contains ASCII characters like the digits 0-9.

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