linux下怎么安装json

find_package(jsoncpp REQUIRED)
include_directories(${JSONCPP_INCLUDE_DIRS})
target_link_libraries(your_target_name ${JSONCPP_LIBRARIES})

#include <json/json.h>
#include <iostream>

int main() {
    // 创建一个JSON对象
    Json::Value root;
    root["name"] = "John Doe";
    root["age"] = 30;

    // 将JSON对象转换为字符串
    Json::FastWriter writer;
    std::string jsonString = writer.write(root);
    std::cout << "JSON: " << jsonString << std::endl;

    // 解析JSON字符串
    Json::Reader reader;
    Json::Value parsedRoot;
    bool parsingSuccessful = reader.parse(jsonString, parsedRoot);
    if (parsingSuccessful) {
        std::cout << "Name: " << parsedRoot["name"].asString() << std::endl;
        std::cout << "Age: " << parsedRoot["age"].asInt() << std::endl;
    } else {
        std::cout << "Failed to parse JSON" << std::endl;
    }

    return 0;
}

g++ -o json_example json_example.cpp -ljsoncpp
./json_example