Linux C++ 读写Json文件

使用Json模块开源项目,Github地址:

https://github.com/nlohmann/json

直接将json.hpp 放入到文件夹中即可。

#include "json.hpp"
#include 
#include 

using namespace std;
using json = nlohmann::json;
int main()
{

    // write to file
    /*
    json outputjson;
   
    outputjson["occupation"] = "paladin";
    outputjson["camp"] = "alliance";
    outputjson["role_id"] = 1;
  


    ofstream os;
    os.open("****.json");
    os << outputjson;
    os.close();
    */
    
    // read json file
    std::ifstream input("******.json");
    json inputjson;
    input >> inputjson;

    std::string strNameAAA = inputjson["aaa"];
    std::string strNameBBB = inputjson["bbb"];
    int intNameCCC = inputjson["ccc"];

    std::cout << "AAA: " << strNameAAA << std::endl;
    std::cout << "BBB: " << strNameBBB << std::endl;
    std::cout << "CCC: " << intNameCCC << std::endl;

    return 0;
}

 

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