将矢量保存到.txt数据库的(C++)问题

#include <iostream>
#include <fstream>
#include <vector>

void saveVectorToDatabase(const std::vector<int>& vec, const std::string& filename) {
    std::ofstream database(filename);
    if (database.is_open()) {
        for (const auto& element : vec) {
            database << element << std::endl;
        }
        database.close();
        std::cout << "Vector saved to database successfully." << std::endl;
    } else {
        std::cout << "Failed to open database." << std::endl;
    }
}

int main() {
    std::vector<int> myVector = {1, 2, 3, 4, 5};
    std::string databaseName = "myDatabase.txt";
    saveVectorToDatabase(myVector, databaseName);
    return 0;
}