boost 操作配置文件

#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
//#include <boost/property_tree/info_parser.hpp>
//#include <boost/property_tree/ini_parser.hpp>
//#include <boost/property_tree/json_parser.hpp>
using namespace std;

int main()
{
  ptree pt;
  read_xml("conf.xml",pt);

  // 读
  cout<< pt.get<int>("config.test1")<<endl;
  cout<< pt.get<string>("config.test2")<<endl;

  // 写
  pt.put("config.url","www.test.com");
  
  write_xml(cout,pt); //这个函数有重载. 可以用流 也可直接用文件名.

 retun 0;
}

//另外boost 还可以操作ini json 等文件格式