git clone https://gitee.com/pgzxb/pgjson.git

cd pgjson
mkdir build
cd build

cmake ..

git clone https://gitee.com/pgzxb/pgjson.git
cd pgjson
mkdir build
cd build
cmake .. -G "MinGW Makefiles"
mingw32-make
# 最终在pgjson/build中有libPGJson.a静态库文件

#include <iostream>
#include <PGJson/Document.h>

using namespace pg::base::json;

int main() {
    // Only when PGJSON_DEBUG was defined, can assertion be used in PGJson.
    // Plenty of assertions are used in PGJson to DEBUG.
    // Recommend you define the macro.

    const char json[] = "{\n"
                        "   \"From\" : {\"name\" : \"PGZXB\", \"age\" : 19, \"GPA\" : 4.14},\n"
                        "   \"To\" : \"PGJson\",\n"
                        "   \"sites\": [\n"
                        "       { \"name\":\"CSDN\" , \"url\": \"https://blog.csdn.net/PGZXB?spm=1011.2124.3001.5343\" },\n"
                        "       { \"name\":\"Gitee\" , \"url\":\"https://gitee.com/pgzxb\" },\n"
                        "       { \"name\":\"Zhihu\" , \"url\":\"https://www.zhihu.com/people/geek-81-44\" },\n"
                        "   ]\n"
                        "}\n";  // The Json-String that will be parsed
                        
    // Create Document, which can parse from string/file/stream and stringify DOM to file/string/stream
    Document document;

    document.parseFromString(json);  // parse json form string

    Node & DOM = document.d();  // get DOM-Root
    
    // add "msg" : "Hello PGJson!" to DOM-Tree-Root-Object
    DOM.addMember("msg")->value.setString("Hello PGJson!");
    
    // stringify the json-tree, default : format-open
    std::cout << document.stringify() << "\n\n";
    
    // stringify the json-tree, format-close
    std::cout << document.stringify(false) << "\n\n";
    return 0;
}

# 在pgjson目录下
g++ hello_pgjson.cpp -L build -lPGJson -o hello_pgjson -I include -DPGJSON_DEBUG -Wall

{
        "From" : {
                "name" : "PGZXB",
                "age" : 19,
                "GPA" : 4.140000
        },
        "To" : "PGJson",
        "sites" : [
                {
                        "name" : "CSDN",
                        "url" : "https://blog.csdn.net/PGZXB?spm=1011.2124.3001.5343"
                },
                {
                        "name" : "Gitee",
                        "url" : "https://gitee.com/pgzxb"
                },
                {
                        "name" : "Zhihu",
                        "url" : "https://www.zhihu.com/people/geek-81-44"
                }
        ],
        "msg" : "Hello PGJson!"
}

{"From" : {"name" : "PGZXB","age" : 19,"GPA" : 4.140000},"To" : "PGJson","sites" : [{"name" : "CSDN","url" : "https://blog.csdn.net/PGZXB?spm=1011.2124.
3001.5343"},{"name" : "Gitee","url" : "https://gitee.com/pgzxb"},{"name" : "Zhihu","url" : "https://www.zhihu.com/people/geek-81-44"}],"msg" : "Hello PG
Json!"}