boost::filesystem经常使用使用方法具体解释

#include<boost/filesystem.hpp> 

{
	boost::filesystem::path path("/test/test1");   //初始化 
	boost::filesystem::path old_cpath = boost::filesystem::current_path(); //取得当前程序所在文件夹  
	boost::filesystem::path parent_path = old_cpath.parent_path();//取old_cpath的上一层父文件夹路径 
	boost::filesystem::path file_path = old_cpath / "file"; //path支持重载/运算符
	if(boost::filesystem::exists(file_path))  //推断文件存在性  
	{  
		std::string strPath = file_path.string();
		int x = 1;
	} 
	else 
	{  
		//文件夹不存在;   
		boost::filesystem::create_directory(file_path);  //文件夹不存在。创建 
	}  
	bool bIsDirectory = boost::filesystem::is_directory(file_path); //推断file_path是否为文件夹
	boost::filesystem::recursive_directory_iterator beg_iter(file_path);
	boost::filesystem::recursive_directory_iterator end_iter;
	for (; beg_iter != end_iter; ++beg_iter)
	{
		if (boost::filesystem::is_directory(*beg_iter))
		{
			continue;
		}
		else
		{	
			std::string strPath = beg_iter->path().string();  //遍历出来的文件名称
			int x=1;
		}
	}
	boost::filesystem::path new_file_path = file_path / "test.txt";
	if(boost::filesystem::is_regular_file(new_file_path))	//推断是否为普通文件
	{  
		UINT sizefile = boost::filesystem::file_size(new_file_path);  //文件大小(字节)
		int x =1;
	}   
	boost::filesystem::remove(new_file_path);//删除文件new_file_path  
}