在C++中设置可执行目录中的文件名

#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>

int main(int argc, char* argv[]) {
    // 获取可执行文件的路径
    std::string executablePath = argv[0];

    // 解析可执行文件的路径，获取所在目录的路径
    std::size_t lastSlashIndex = executablePath.find_last_of("/\\");
    std::string executableDirectory = executablePath.substr(0, lastSlashIndex + 1);

    // 设置文件名
    std::string fileName = "example.txt";

    // 拼接文件路径
    std::string filePath = executableDirectory + fileName;

    // 使用文件路径进行文件操作
    std::ofstream file(filePath);
    if (file.is_open()) {
        file << "Hello, World!";
        file.close();
        std::cout << "File created: " << filePath << std::endl;
    } else {
        std::cerr << "Failed to create file: " << filePath << std::endl;
        return EXIT_FAILURE;
    }

    return EXIT_SUCCESS;
}