strcmp 或 string::compare?

2022-01-12 00:00:00 string c char c++ string-comparison

我想比较两个字符串.strcmp 可以吗?(我试过了，它似乎不起作用).string::compare 是解决方案吗?

I want to compare two strings. Is it possible with strcmp? (I tried and it does not seem to work). Is string::compare a solution?

除此之外，有没有办法将 string 与 char 进行比较?

Other than this, is there a way to compare a string to a char?

感谢您的早期评论.我用 C++ 编码，是的，就像你们中的一些人提到的那样，它是 std::string .我没有发布代码，因为我想学习一般知识并且它是一个很长的代码，所以它与问题无关.

Thanks for the early comments. I was coding in C++ and yes it was std::string like some of you mentioned. I didn't post the code because I wanted to learn the general knowledge and it is a pretty long code, so it was irrelevant for the question.

我想我了解了 C++ 和 C 之间的区别，感谢您指出这一点.我现在将尝试使用重载运算符.顺便说一下 string::compare 也可以.

I think I learned the difference between C++ and C, thanks for pointing that out. And I will try to use overloaded operators now. And by the way string::compare worked too.

推荐答案

对于 C++，使用 std::string 并使用 string::compare 进行比较.

For C++, use std::string and compare using string::compare.

对于 C 使用 strcmp.如果您的(我的意思是您的程序)字符串(出于某种奇怪的原因)没有 nul 终止，请使用 strncmp 代替.

For C use strcmp. If your (i meant your programs) strings (for some weird reason) aren't nul terminated, use strncmp instead.

但是为什么有人不会为 std::string 使用像 == 这样简单的东西?

But why would someone not use something as simple as == for std::string ?

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