本文介绍了使用C ++逐行读取字符串的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个 std :: string 多行,我需要逐行阅读。
请用一个小例子演示一下。

I have a std::string with multiple lines and I need to read it line by line.Please show me how to do it with a small example.

例如:我有一个字符串 string h;

Ex: I have a string string h;

h将是:

Hello there.
How are you today?
I am fine, thank you.

我需要在其中提取 Hello。今天好吗?很好,谢谢。

I need to extract Hello there., How are you today?, and I am fine, thank you. somehow.

推荐答案

#include <sstream>
#include <iostream>

int main() {
    std::istringstream f("line1\nline2\nline3");
    std::string line;
    while (std::getline(f, line)) {
        std::cout << line << std::endl;
    }
}

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08-19 22:18