主要使用#include <io.h>庫下的函式

如果 路勁控制代碼定義為long型別，_findnext函式會報 訪問異常，解決方法參考：http://blog.csdn.net/kelvin_yan/article/details/53997840

例項程式碼：

#include <fstream>
#include <string>
#include "utils.h"
#include <stdio.h>

#include <direct.h>
#include <iostream>
#include <io.h>

using namespace std;
using namespace cv;

string trainPtah = "F://vido and images fro test//UIUC texture database";

void getClassName(string path, vector<string>& paths)
{
	intptr_t hFile = 0;
	struct _finddata_t fileinfo;
	string p;

	hFile = _findfirst(p.assign(path).append("\\*").c_str(), &fileinfo);

	if (hFile != -1) {
		while (_findnext(hFile, &fileinfo) == 0) {
			if (fileinfo.attrib & _A_SUBDIR) {
				if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0) {
					paths.push_back(p.assign(path).append("/").append(fileinfo.name));//儲存資料夾名字
				}
			}
		}
	}
}


void main()
{
	vector<string> paths;
	getClassName(trainPtah, paths);
	for (int i = 0; i < paths.size(); i++) {
		cout << paths.at(i) << endl;
	}

	system("pause");
}