http://www.eyny.com/viewthread.php?tid=5728359

forcetw20101222.cpp

// @eyny@Force[TW]@
#include "forcetw20101222.h"
//
CWChar::CWChar(void)
{
	this->m_wcs = NULL;
	this->m_size = 0;
}
CWChar::CWChar(const char* str)
{
	int nSize = 0;
	for (; str[nSize] != NULL; nSize ++);
	this->m_size = nSize;
	nSize ++;
	this->m_wcs = new wchar_t[nSize];
	//
	// MultiByteToWideChar
	// CP_ACP = 0
	// MB_ERR_INVALID_CHARS = 0x00000008
	MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, str, nSize, this->m_wcs, nSize);
}
CWChar::~CWChar(void)
{
	if ( this->m_wcs != NULL )
	{
		delete [] this->m_wcs;
	}
}
void CWChar::setStr(const char* str)
{
	int nSize = 0;
	for (; str[nSize] != NULL; nSize ++);
	this->m_size = nSize;
	nSize ++;
	this->m_wcs = new wchar_t[nSize];
	//
	// MultiByteToWideChar
	// CP_ACP = 0
	// MB_ERR_INVALID_CHARS = 0x00000008
	MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, str, nSize, this->m_wcs, nSize);
}
CFindData::CFindData(void)
{
	//
	// INVALID_HANDLE_VALUE = ((HANDLE)(LONG_PTR)-1)
	this->m_hFD = INVALID_HANDLE_VALUE;
	memset((void*)&(this->m_FindData), 0, sizeof(WIN32_FIND_DATA));
}
CFindData::~CFindData(void)
{
	//
	// INVALID_HANDLE_VALUE = ((HANDLE)(LONG_PTR)-1)
	this->m_hFD = INVALID_HANDLE_VALUE;
	memset((void*)&(this->m_FindData), 0, sizeof(WIN32_FIND_DATA));
}
void CFindData::FindDir(void)
{
	this->m_hFD = FindFirstFile(this->m_dir.m_wcs, &(this->m_FindData));
	//
	// INVALID_HANDLE_VALUE = ((HANDLE)(LONG_PTR)-1)
	if ( this->m_hFD != INVALID_HANDLE_VALUE )
	{
		do 
		{
			//
			// FILE_ATTRIBUTE_DIRECTORY = 0x00000010
			if ( this->m_FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
			{
				//
				// 不顯示根目錄
				if ( ! ((wcscmp(this->m_FindData.cFileName, L".") == 0) | (wcscmp(this->m_FindData.cFileName, L"..") == 0)) )
				{
					wcout << "[" << this->m_FindData.cFileName << "]" << endl;
				}
			}
		} while ( FindNextFile(this->m_hFD, &(this->m_FindData)) != 0 );
		FindClose(this->m_hFD);
	} 
	else
	{
		cout << "Error: find directory failed." << endl;
	}
}
void CFindData::FindFile(void)
{
	this->m_hFD = FindFirstFile(this->m_dir.m_wcs, &(this->m_FindData));
	//
	// INVALID_HANDLE_VALUE = ((HANDLE)(LONG_PTR)-1)
	if ( this->m_hFD != INVALID_HANDLE_VALUE )
	{
		do 
		{
			//
			// FILE_ATTRIBUTE_DIRECTORY = 0x00000010
			if ( this->m_FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
			{
				//
				// 僅顯示檔案
				;
			}
			else
			{
				wcout << this->m_FindData.cFileName << endl;
			}
		} while ( FindNextFile(this->m_hFD, &(this->m_FindData)) != 0 );
		FindClose(this->m_hFD);
	} 
	else
	{
		cout << "Error: find file failed." << endl;
	}
}

forcetw20101222.h

// @eyny@Force[TW]@
#ifndef _FORCETW20101222_H_
#define _FORCETW20101222_H_
#include <iostream>
#include <Windows.h>
#include <memory.h>
using namespace std;
//
class CWChar
{
public:
	wchar_t* m_wcs;
	int m_size;
	CWChar(void);
	CWChar(const char* str);
	~CWChar(void);
	void setStr(const char* str);
};
//
class CFindData
{
public:
	CWChar m_dir;
	HANDLE m_hFD;
	WIN32_FIND_DATA m_FindData;
	CFindData(void);
	~CFindData(void);
	void FindDir(void);
	void FindFile(void);
};
//
#endif

main.cpp

// @eyny@Force[TW]@
// Integrated Development Environment
// Visual C++
#include <iostream>
#include <cstdlib>
#include <locale.h>
//#include <string>
#include "forcetw20101222.h"
using namespace std;
//
int main(int argc, char** argv)
{
	setlocale(LC_ALL, "cht");
	//
	// 輸入目錄名稱
	//string IptBfr;
	//cout << "Input a directory: ", getline(cin, IptBfr);
	//IptBfr += "\\*";
	CFindData fd;
	//fd.m_dir.setStr(IptBfr.c_str());
	fd.m_dir.setStr("D:\\*");
	fd.FindDir();
	fd.FindFile();
	//
	//system("PAUSE");
	return (0);
}