标签：des style blog http color io os 使用 ar
1. 修改元素值 second_node.set_value("miller");不对
必须second_node.first_child().set_value("miller");
2. 小例子
#include <iostream>
#include "pugixml.hpp"
#include <stdio.h>
using namespace std;
using namespace pugi;
cout << "Hello world!" << endl; xml_document agentdoc; agentdoc.load_file("agent.xml"); xml_node root_node = agentdoc.child("root"); xml_node first_node = root_node.child("thrift"); xml_node second_node = first_node.child("switch"); cout<<"first name : "<<first_node.name()<<endl; cout<<"second name : "<<second_node.name()<<endl; cout<<"second value : "<<second_node.child_value()<<endl; 此处不能用value
// Note: For <node>text</node> node.value() does not return "text"! Use child_value() or text() methods to access text inside nodes. // second_node.first_child().value(); second_node.first_child().set_value("qinbin"); cout<<"second value 执行完 : "<<second_node.child_value()<<endl; agentdoc.save_file("agent.xml");
3.
pugixml的三个文件，可以只include头文件pugixml.hpp，CPP文件不用放到项目中，
方法是，在pugiconfig.hpp中：
// Uncomment this to switch to header-only version
#define PUGIXML_HEADER_ONLY
#include "pugixml.cpp"
将这两行的注释去掉就可以了。
另外，如果项目使用的是Unicode设置，则可以在pugiconfig.hpp中：
// Uncomment this to enable wchar_t mode
#define PUGIXML_WCHAR_MODE
将wchar模式打开即可。
4.一开始新生成xml时，second_node.text().set(var.data());
5.官网文档 http://pugixml.googlecode.com/svn/tags/latest/docs/quickstart.html#quickstart.main.modify 不FQ不知道能不能打开
pugi::xml_node node = doc.child("node"); // change node name std::cout << node.set_name("notnode"); std::cout << ", new node name: " << node.name() << std::endl; // change comment text std::cout << doc.last_child().set_value("useless comment"); std::cout << ", new comment text: " << doc.last_child().value() << std::endl; // we can‘t change value of the element or name of the comment 见第一条 std::cout << node.set_value("1") << ", " << doc.last_child().set_name("2") << std::endl; pugi::xml_attribute attr = node.attribute("id"); // change attribute name/value std::cout << attr.set_name("key") << ", " << attr.set_value("345"); std::cout << ", new attribute: " << attr.name() << "=" << attr.value() << std::endl; // we can use numbers or booleans attr.set_value(1.234); std::cout << "new attribute value: " << attr.value() << std::endl; // we can also use assignment operators for more concise code attr = true; std::cout << "final attribute value: " << attr.value() << std::endl;
This is an example of adding new attributes/nodes to the document (samples/modify_add.cpp): // add node with some name pugi::xml_node node = doc.append_child("node"); // add description node with text child pugi::xml_node descr = node.append_child("description"); descr.append_child(pugi::node_pcdata).set_value("Simple node"); // add param node before the description pugi::xml_node param = node.insert_child_before("param", descr); // add attributes to param node param.append_attribute("name") = "version"; param.append_attribute("value") = 1.1; param.insert_attribute_after("type", param.attribute("name")) = "float";
This is an example of removing attributes/nodes from the document (samples/modify_remove.cpp): // remove description node with the whole subtree pugi::xml_node node = doc.child("node"); node.remove_child("description"); // remove id attribute pugi::xml_node param = node.child("param"); param.remove_attribute("value"); // we can also remove nodes/attributes by handles pugi::xml_attribute id = param.attribute("name"); param.remove_attribute(id);
标签：des style blog http color io os 使用 ar
原文地址：http://www.cnblogs.com/qbmiller/p/3974455.html
