JSON中作为值的向量(C++/nlohmann::JSON)

您可以直接从 std::vector<std::string> 所以类似的方法会奏效:

#include <nlohmann/json.hpp>

#include <iostream>
#include <std::string>
#include <vector>

using json = nlohmann::json;

int main() {
    std::vector<std::string> rooms{
        "room1",
        "room2",
        "room3",
    };

    json j;

    // key `rooms` and create the json array from the vector:
    j["rooms"] = rooms;

    std::cout << j << '\n';
}

输出

{"rooms":["room1","room2","room3"]}