如何将每个字符串保存在文本文件C++中

#include <iostream>
#include <fstream>

int main() {
    std::ofstream outputFile("output.txt");
    // 其他代码...
    return 0;
}

std::string str = "Hello, world!";
outputFile << str;

outputFile << "String 1" << '\n';
outputFile << "String 2" << '\n';
outputFile << "String 3" << '\n';

outputFile.close();

#include <iostream>
#include <fstream>

int main() {
    std::ofstream outputFile("output.txt");
    if (outputFile.is_open()) {
        outputFile << "String 1" << '\n';
        outputFile << "String 2" << '\n';
        outputFile << "String 3" << '\n';
        outputFile.close();
        std::cout << "Strings saved to file." << std::endl;
    } else {
        std::cout << "Failed to open file." << std::endl;
    }
    return 0;
}