c++批量读取指定文件下文件

void getFiles(string path, string exd, vector<string>& files)
{
	//文件句柄
	long   hFile = 0;
	//文件信息
	struct _finddata_t fileinfo;
	string pathName, exdName;

	if (0 != strcmp(exd.c_str(), ""))
	{
		exdName = "\*." + exd;
	}
	else
	{
		exdName = "\*";
	}

	if ((hFile = _findfirst(pathName.assign(path).append(exdName).c_str(), &fileinfo)) != -1)
	{
		do
		{
			//如果是文件夹中仍有文件夹,迭代之
			//如果不是,加入列表
			if ((fileinfo.attrib &  _A_SUBDIR))
			{
				if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
					getFiles(pathName.assign(path).append("\").append(fileinfo.name), exd, files);
			}
			else
			{
				if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
					files.push_back(pathName.assign(path).append("\").append(fileinfo.name));
			}
		} while (_findnext(hFile, &fileinfo) == 0);
		_findclose(hFile);
	}
}