pugixml读写遍历节点方法

谁借莪１个温暖的怀抱￠ 2022-04-15 05:39 1042阅读 0赞

// test.cpp : Defines the entry point for the console application.
    
    //test.xml
    /*
    
    <?xml version="1.0" encoding="ISO-8859-1"?>
    <bookstore>
    <book name="0">
    <title lang="eng">Harry Potter</title>
    <price>29.99</price>
    <test1>test_1</test1>
    <test2>test_2</test2>
    </book>
    <book>
    <title lang="eng">Learning XML</title>
    <price>39.95</price>
    </book>
    </bookstore>
    
    */
    #include "stdafx.h"
    #include <iostream>
    #include "pugixml.hpp"
    
    
    int _tmain(int argc, _TCHAR* argv[])
    {
    	pugi::xml_document doc;
    	if (!doc.load_file("test.xml")) return -1;
    
    	pugi::xpath_node_set tools = doc.select_nodes("/bookstore/book[@name='0']"); //筛选出所有 name=0的book节点
    
    	std::cout <<tools.size()<< "  Tools:\n";
    
    	
    	//book 项
    	for (pugi::xpath_node_set::const_iterator it = tools.begin(); it != tools.end(); ++it)
    	{
    		pugi::xml_node nodeTmp = it->node();
    		//book 节点名和值
    		std::cout<< nodeTmp.name()<<" -- "<<nodeTmp.text().as_string()<<std::endl;
    
    		//book节点属性
    		for (pugi::xml_attribute attr = nodeTmp.first_attribute(); attr; attr = attr.next_attribute())  
    		{  
    			std::cout << " " << attr.name() << "=" << attr.value() <<"\n";  
    		}
    		
    		//book 子节点集合
    		pugi::xml_object_range<pugi::xml_node_iterator> child = nodeTmp.children();
    
    		// book/title  book/price  ....等子节点 
    	    pugi::xml_node_iterator iterchild = child.begin();
    		for (iterchild; iterchild != child.end(); iterchild++)
    		{
    			
    			std::cout<< iterchild->name()<<" -- "<<iterchild->text().as_string()<<std::endl;
    		}
    		
    	}
    
    	return 0;
    }
    
    //输出结果
    1  Tools:
    book --
    name=0
    title -- Harry Potter
    price -- 29.99
    test1 -- test_1
    test2 -- test_2
    请按任意键继续. . .