Objective-C-字符和单字符之间的区别? [英] objective-c - difference between char and unichar?

问题描述

我搜索了很多有关 unichar 和 char 的区别的信息，但是没有一个明确的概念.还告诉我有关 char [] 和 unichar [] 的区别.

I searched a lot about the difference of unichar and char but did't get any clear concept. also tell me difference about char[] and unichar[].

何时使用 char 和 unichar ??

推荐答案

char 是8位，代表任意8位数字，UTF-8代码单元或代码单元用其他一些字符编码.

char is 8 bits and represents either an arbitrary 8-bit number, or a UTF-8 code unit, or a code unit in some other character encoding.

unichar 是16位，代表UTF-16代码单元.

unichar is 16 bits and represents a UTF-16 code unit.

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