However, the length of "a" is one byte and that of "Latin capital letter a with ring above" is two bytes.

但是，“A”的长度是一个字节而“上面带圈的大写拉丁字母A”的长度则是两个字节。

youdao

One byte stores one character (e.g. a letter or a number).

1字节存储1个字符(如一个字母或一个数字)。

youdao

Row 1 has a multi-byte UTF character containing 3 logical characters containing 3 bytes each (superscript denotes the storage of a single letter).

行1有一个包含3个逻辑字符的多字节ut f字符，其中每个字符包含3个字节(上标表示一个字母的存储)。

youdao

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。

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