VS 32位上的文件遍历，在fileFolderPath下找fileExtension的文件。

vector<string> FindAllFile(const string fileFolderPath, const string fileExtension)
{
	struct _finddata_t fileInfo;    // 文件信息结构体  
	string fileFolder = fileFolderPath + "\\*." + fileExtension;
	vector<string> fileName;
	// 1. 第一次查找  
	long findResult = _findfirst(fileFolder.c_str(), &fileInfo);
	if (findResult == -1)
	{
		_findclose(findResult);
		return fileName;
	}


	// 2. 循环查找  
	string temp1 = "\\";
	do
	{
		string temp;
		temp = fileFolderPath.c_str() + temp1 + fileInfo.name;


		//sprintf(fileName, "%s\\%s", fileFolderPath.c_str(), fileInfo.name);


		if (fileInfo.attrib == _A_ARCH)  // 是存档类型文件  
		{
			fileName.push_back(temp);
		}


	} while (!_findnext(findResult, &fileInfo));




	_findclose(findResult);
	return fileName;
}

32位的资料很多，64位系统下的比较少，我用了这个在调用_findnext的时候容易报错。自己查了资料，写了个64位系统下的

#include <io.h>
#include <AtlBase.h>

std::string ws2s(const std::wstring& ws)
{
	std::string curLocale = setlocale(LC_ALL, NULL);        // curLocale = "C";
	setlocale(LC_ALL, "chs");
	const wchar_t* _Source = ws.c_str();
	size_t _Dsize = 2 * ws.size() + 1;
	char *_Dest = new char[_Dsize];
	memset(_Dest, 0, _Dsize);
	wcstombs(_Dest, _Source, _Dsize);
	std::string result = _Dest;
	delete[]_Dest;
	setlocale(LC_ALL, curLocale.c_str());
	return result;
}


std::wstring s2ws(const std::string& s)
{
	setlocale(LC_ALL, "chs");
	const char* _Source = s.c_str();
	size_t _Dsize = s.size() + 1;
	wchar_t *_Dest = new wchar_t[_Dsize];
	wmemset(_Dest, 0, _Dsize);
	mbstowcs(_Dest, _Source, _Dsize);
	std::wstring result = _Dest;
	delete[]_Dest;
	setlocale(LC_ALL, "C");
	return result;
}


vector<string> FindAllFile(const string path, const string fileExtension)
{
	wstring wpath = s2ws(path);
	LPCTSTR str = wpath.c_str();
	_tfinddata64_t c_file;


	intptr_t hFile;


	TCHAR root[MAX_PATH];
	
	_tcscpy(root, str);


	_tcscat(root, _T("\\*."));
	wstring wext = s2ws(fileExtension);
	LPCTSTR str2 = wext.c_str();
	_tcscat(root, str2);
	hFile = _tfindfirst64(root, &c_file);
	vector<string> filenames;
	if (hFile == -1)
		return filenames;
	do


	{


		TCHAR *fullPath = new TCHAR[MAX_PATH];


		_tcscpy(fullPath,str);


		_tcscat(fullPath, _T("\\"));


		_tcscat(fullPath, c_file.name);


		if (c_file.attrib == _A_ARCH)


		{


			string file = ws2s(fullPath);
			filenames.push_back(file);


		}
	}


	while (_tfindnext64(hFile, &c_file) == 0);


	//close search handle


	_findclose(hFile);
	return filenames;
}

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