使用pugixml创建并解析XML

创建并读取如下xml文件：

<?xml version="1.0" encoding="utf-8"?><Students><!--Students!--><Student id="1"><Name>MaZhe</Name><Age>18</Age></Student><Student id="2"><Name>Miki</Name><Age>19</Age></Student><Student id="3"><Name>Maki</Name><Age>20</Age></Student></Students>

代码实现：

#include <iostream>#include <string>#include <vector>#include <list>#include "pugixml.hpp"static const char* kFileName = "students2.xml";struct Student {  int id;  std::string name;  int age;  Student(int id_, const std::string& name_, int age_)      : id(id_)      , name(name_)      , age(age_) {  }  void Print() const {    std::cout << "Id: " << id << ", Name: " << name << ", Age: " << age << std::endl;  }};using namespace std;// 创建XML。static void WriteData() {  // Prepare data.  std::list<Student> students;  students.push_back(Student(1, "MaZhe", 18));  students.push_back(Student(2, "Miki", 19));  students.push_back(Student(3, "Maki", 20));  // Serialization.  pugi::xml_document xdoc;  pugi::xml_node xdec = xdoc.prepend_child(pugi::node_declaration);  xdec.append_attribute("version").set_value("1.0");  xdec.append_attribute("encoding").set_value("utf-8");  pugi::xml_node xstudents = xdoc.append_child("Students");  xstudents.append_child(pugi::node_comment).set_value("Students!");  for (const Student& student : students) {    pugi::xml_node xstudent = xstudents.append_child("Student");    pugi::xml_attribute xstudent_id = xstudent.append_attribute("id");    xstudent_id.set_value(student.id);    pugi::xml_node xname = xstudent.append_child("Name");    xname.append_child(pugi::node_pcdata).set_value(student.name.c_str());    pugi::xml_node xage = xstudent.append_child("Age");    char buf[128] = { 0 };    sprintf(buf, "%d", student.age);    xage.append_child(pugi::node_pcdata).set_value(buf);  }  xdoc.print(std::cout);  xdoc.save_file(kFileName);}// 读取并解析XML。static void ReadData() {  std::list<Student> students;  pugi::xml_document xdoc;  if (!xdoc.load_file(kFileName)) {    return;  }  pugi::xml_node xstudents = xdoc.child("Students");  for (pugi::xml_node xstudent = xstudents.first_child(); xstudent != NULL; xstudent = xstudent.next_sibling()) {    int id = xstudent.attribute("id").as_int();    pugi::xml_node xname = xstudent.child("Name");    std::string name = xname.text().as_string();    pugi::xml_node xage = xstudent.child("Age");    int age = xage.text().as_int();    students.push_back(Student(id, name, age));  }  for (const Student& student : students) {    student.Print();  }}int main() {  WriteData();  ReadData();  return 0;}