如何将bsoncxx：：document：：元素写入控制台

#include <iostream>
#include <bsoncxx/json.hpp>
#include <bsoncxx/builder/stream/document.hpp>

bsoncxx::builder::stream::document document;
document << "key1" << "value1" << "key2" << "value2";

std::string jsonStr = bsoncxx::to_json(document.view());

std::cout << jsonStr << std::endl;

#include <iostream>
#include <bsoncxx/json.hpp>
#include <bsoncxx/builder/stream/document.hpp>

int main() {
    bsoncxx::builder::stream::document document;
    document << "key1" << "value1" << "key2" << "value2";

    std::string jsonStr = bsoncxx::to_json(document.view());
    std::cout << jsonStr << std::endl;

    return 0;
}