int readXML(void)

 {

     rapidxml::file<> file("student.xml");

     rapidxml::xml_document<> doc;

     doc.parse<>(file.data());

     rapidxml::xml_node<> *root = doc.first_node();

     rapidxml::xml_node<> *p_node = root->first_node();

     for ( ; NULL != p_node; p_node = p_node->next_sibling())

     {

         std::cout << p_node->name() << std::endl;

         for (rapidxml::xml_node<> *p_temp = p_node->first_node(); NULL != p_temp; p_temp = p_temp->next_sibling())

         {

             std::cout <<  p_temp->name() << " : " << p_temp->value() << std::endl;

         }

     }

     doc.clear();

     system("pause");

     return ;

 }