std :: string和std :: basic_string之间有什么区别？为什么都需要？ [英] What's the difference between std::string and std::basic_string? And why are both needed?

问题描述

std :: string 和 std :: basic_string 有什么区别？为什么都需要？

What's the difference between std::string and std::basic_string? And why are both needed?

推荐答案

std :: basic_string 是用于根据字符类型制作字符串的类模板， std :: string 是 typedef ，用于对该类模板进行专门化处理为 char 。是的，它们都是必需的（或至少是标准要求的）。

std::basic_string is a class template for making strings out of character types, std::string is a typedef for a specialization of that class template for char. Yes they are both needed (or at least required by the standard).

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