C++ 字符串与向量<char> [英] C++ strings vs vector<char>

问题描述

我们每个人都知道我们应该更喜欢 C++ 中的 string 类用于所有字符串应用程序，因为它们执行许多特殊功能 &他们的成长能力动态减少.string 用于characters，vector 用于其他数据类型 &类，因为它显示了出色的性能.

It's known to everyone of us that we should prefer string class in C++ for all string applications due to the many special functions they perform & their ability to grow & reduce dynamically. What string is for characters, vector is for other data types & classes because it shows great performance.

但是，在任何情况下，我们需要更喜欢 vector(我很少看到)而不是 string 吗?

However is there any situation where we would need to prefer vector<char> (which I see seldom) over string ?

推荐答案

只有当我明确打算存储一个不是字符串的 char 值数组时，我才会使用 vector.例如.如果出于某种原因我要收集特定文本中某处使用的所有字符，结果可能是 vector.

I'd use vector<char> only if I explicitly intent to store an array of char values, which is not a string. E.g. if for some reason I'd collect all the characters used somewhere in a specific text, the result might be a vector<char>.

要明确:一切都是为了表达意图.

To be clear: it is all about expressing the intent.

这篇关于C++ 字符串与向量<char>的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！