Recognizing the character as a single, unit as opposed to a sequence of bytes, is a requirement in the case of string manipulations involving multi-byte characters.
将字符看作一个单元而不是一个字节序列,这是进行多字节字符的字符串操作的必要条件。
2
A character can be defined as a unit of information that corresponds to an atomic unit in a written language.
可以将字符定义为一个信息单元,对应于书面语言的一个原子单元。
3
Processing a text file often consists of sequentially reading a unit of information (typically either a character or a line) and doing something in response to the unit you've just read.