#include <iostream>

#include <cstdint>

#include "pugixml.hpp"

static const int32_t nBufSize = ;

static char szBuf[nBufSize] = {  };

// 写操作

void Write(const char *szXmlFileName)

{

    pugi::xml_document xmlDoc;

    pugi::xml_node nodeRoot = xmlDoc.append_child("root");

    // 声明

    pugi::xml_node pre = xmlDoc.prepend_child(pugi::node_declaration);

    pre.append_attribute("version") = "1.0";

    pre.append_attribute("encoding") = "utf-8";

    // 注释节点1

    pugi::xml_node nodeCommentStudents = nodeRoot.append_child(pugi::node_comment);

    nodeCommentStudents.set_value("all students info");

    // 普通节点1

    pugi::xml_node nodeStudents = nodeRoot.append_child("students");

    for(int32_t i = ; i < ; ++i)

    {

        sprintf_s(szBuf, nBufSize, "student_%02d", i);

        pugi::xml_node nodeStudent = nodeStudents.append_child("student");

        // 增加属性

        nodeStudent.append_attribute("name").set_value(szBuf);

        nodeStudent.append_attribute("score").set_value( - i);

    }

    // 注释节点2

    pugi::xml_node nodeCommentBooks = nodeRoot.append_child(pugi::node_comment);

    nodeCommentBooks.set_value("all books info");

    // 普通结点2

    pugi::xml_node nodeBooks = nodeRoot.append_child("books");

    for(int32_t i = ; i < ; ++i)

    {

        sprintf_s(szBuf, nBufSize, "book_%02d", i);

        pugi::xml_node nodeBook = nodeBooks.append_child("book");

        // 增加属性

        nodeBook.append_attribute("book").set_value(szBuf);

        nodeBook.append_attribute("price").set_value( - i);

    }

    xmlDoc.save_file(szXmlFileName, "\t", 1U, pugi::encoding_utf8);

}

// 读操作

void Read(const char *szXmlFileName)

{

    pugi::xml_document xmlDoc;

    if(!xmlDoc.load_file(szXmlFileName, pugi::parse_default, pugi::encoding_utf8))

    {

        std::cout << "read " << szXmlFileName << " failed" << std::endl;

        return;

    }

    pugi::xml_node nodeRoot = xmlDoc.child("root");

    // 读取第一个节点

    for(pugi::xml_node node = nodeRoot.child("students").first_child(); node; node = node.next_sibling())

    {

        std::cout << "\t" << node.attribute("name").value() << "," << node.attribute("score").value() << std::endl;

    }

    std::cout << std::endl;

    // 读取第二个节点

    for(pugi::xml_node node = nodeRoot.child("books").first_child(); node; node = node.next_sibling())

    {

        std::cout << "\t" << node.attribute("book").value() << "," << node.attribute("price").value() << std::endl;

    }

}

int32_t main()

{

    const char *szXmlFileName = "info.xml";

    Write(szXmlFileName);

    Read(szXmlFileName);

    std::cout << "finish" << std::endl;

    getchar();

    return ;

}

<?xml version="1.0" encoding="utf-8"?>

<root>

    <!--all students info-->

    <students>

        <student name="student_00" score="100" />

        <student name="student_01" score="99" />

        <student name="student_02" score="98" />

        <student name="student_03" score="97" />

        <student name="student_04" score="96" />

        <student name="student_05" score="95" />

        <student name="student_06" score="94" />

        <student name="student_07" score="93" />

        <student name="student_08" score="92" />

        <student name="student_09" score="91" />

    </students>

    <!--all books info-->

    <books>

        <book book="book_00" price="50" />

        <book book="book_01" price="49" />

        <book book="book_02" price="48" />

        <book book="book_03" price="47" />

        <book book="book_04" price="46" />

        <book book="book_05" price="45" />

        <book book="book_06" price="44" />

        <book book="book_07" price="43" />

        <book book="book_08" price="42" />

        <book book="book_09" price="41" />

    </books>

</root>