c++ - 使用 C++ 逐行读取字符串

Question

我有一个 std::string多行，我需要逐行阅读。 请用一个小例子告诉我如何做到这一点。

例如:我有一个字符串 string h;

h 将是:

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

我需要提取 Hello there. , How are you today? , 和 I am fine, thank you.不知何故。

Answer 1

#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;
    }
}