C++实现人脸识别csv文件的写入（加labels）

#include<iostream>
#include<vector>
#include<io.h>
#include<fstream>

using namespace std;

ofstream off("csv.txt", ios::out);
vector<int> number;

int num = 0;

void getFiles(string path, vector<string>& files)
{
//文件句柄
long   hFile = 0;
//文件信息
struct _finddata_t fileinfo;
string p;
if ((hFile = _findfirst(p.assign(path).append("\\*").c_str(), &fileinfo)) != -1)
{
do
{
//如果是目录,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(p.assign(path).append("\\").append(fileinfo.name), files);
num++;
}
}
else
{
files.push_back(p.assign(path).append("\\").append(fileinfo.name));
number.push_back(num);
}
} while (_findnext(hFile, &fileinfo) == 0);
_findclose(hFile);
}
}

int main(){
char* filepath = "F:\\opencv\\DATA\\orl";
vector<string> files;
getFiles(filepath,files);
char str[30];
int size = files.size();
for (int i = 1; i < size; i++){
off << files[i].c_str();
off << " ";
off << number[i];
off << "\n";
}
off.close();
return 0;
}