#include <nlohmann/json.hpp> //引入json.hpp,该文件已经放在系统默认路径:/usr/local/include/nlohmann/json.hpp using namespace std; // for convenience using json = nlohmann::json; int main() { auto config_json = json::parse(R"({"happy": true, "pi": 3.141})"); //构建json对象 cout ...
nlohmann库(https://github.com/nlohmann/json)提供了丰富而且符合直觉的接口(https://json.nlohmann.me/api/basic_json/),只需导入头文件即可使用,方便整合到项目中。 CJSON: JSON: JavaScript Object Notation(JavaScript 对象表示法),是轻量级的存储和交换文本信息的语法,类似 XML . 特点是纯文本(纯字符串)、...
#include "json.hpp" using namespace std; using json = nlohmann::json; int main() { cout<<"Json test"<<endl; json j; j="{ \"happy\": true, \"pi\": 3.141 }"_json; cout<<setw(4)<<j<<endl; return 0; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15...
这段话的意思是json标准的定义是零个或多个键值对对的无序集合,如果要保证插入顺序,可以使用tsl::ordered_map(integration)或nlohmann::fifo_map(integration)等容器专门化对象类型。nlohmann::fifo_map同样在github上找到,“专门化对象类型”的意思是nlohmann/json组件内部用到了很多std容器,只需要将其替换成可以保存...
nlohmann::json是非常好用的一个json开源解析库.nlohmann/json的源码是基于C++11标准写的,整个源码就是...
RabbitMQ是一个开源的消息中间件,它实现了高效的消息传递机制,可以在分布式系统中进行可靠的消息传递。nlohmann json是一个C++库,用于处理JSON数据。rabbitmq-c是Rabb...
我需要检查 subject_id 是否存在于上述 json 数据中。为此,我在下面做了: auto subjectIdIter = response.find("subject_id"); if (subjectIdIter != response.end()) { cout << "it is found" << endl; } else { cout << "not found " << endl; } 我该如何解决这个问题。谢谢 原文由 S An...
Assuming you're happy with a C++ implementation of the parser, I've not had any issues with nlohmann/json; although there are faster libraries it has been fast enough for my requirements and has the advantages that: It is very easy to integrate into your project (single header) A clean ...
确定你的编译器支持 C++11 标准或更高版本。在CMakeLists.txt文件中添加以下行来添加nlohmann_json库:...
using json = nlohmann::json; But Visual Studio 2015 IDE shows as tooltip the following message: namespace nlohmann has no member json After typing justnlohmann::, I get an auto suggestion ofjson_pointerbut notjson. What is going wrong actually ?