函数：

 

vector<string> 
get_all_files_names_within_folder(string folder)
{
vector<string> names;
char search_path[200];
sprintf(search_path， "%s*.*"， folder.c_str());
WIN32_FIND_DATA fd;
HANDLE hFind = ::FindFirstFile(search_path， &fd);
if(hFind != INVALID_HANDLE_VALUE)
{
do
{
// read all (real) files in current folder
// ， delete '!' read other 2 default folder . and ..
if(! (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) )
{
names.push_back(fd.cFileName);
}
}while(::FindNextFile(hFind， &fd));
::FindClose(hFind);
}
return names;
}

　　使用方法：
　　vector<string> vec;
　　vec = get_all_files_names_within_folder("F:\OpenCV\CutKoobee2Eye\");