从文件夹读取文件

// test2.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include<vld.h>
#include<string>
#include<stdio.h>  
#include<algorithm>  
#include<vector>  
#include<iostream>  
#include<stdlib.h>
#include<typeinfo>
#include<utility>
#include<tuple>
#include<fstream>
#include<bitset>
#include<io.h>

using namespace std;

void getfile(string filepath, vector<string> &files)
{
    struct _finddata_t fileinfo;
    auto handle=_findfirst(string(filepath).append("\\*").c_str(), &fileinfo);
    if (handle == -1)
    {
        perror("file not exist");
        exit(1);
    }
    /*if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..")!=0)
    files.push_back(string(filepath).append("\\").append(fileinfo.name));
    cout << fileinfo.name << endl;*/

    //用do...while可以把第一次统一进来，就不用像上面一样单独处理了
    do
    {
        cout << fileinfo.name << endl;
        if (fileinfo.attrib & _A_SUBDIR)
        {
            if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
                getfile(string(filepath).append("\\" + string(fileinfo.name)), files);
        }
        else 
            files.push_back(string(filepath).append("\\").append(fileinfo.name));
    } while (_findnext(handle, &fileinfo) == 0);
    _findclose(handle);
}

int main()
{
    string filepath = "F:\\aaa";
    vector<string> files;
    getfile(filepath, files);
    for (decltype(files.size()) i = 0; i != files.size(); ++i)
    {
        cout << files[i] << endl;
        ofstream os(files[i]);
        if (!os)
        {
            perror("file not open");
            exit(1);
        }
        os << to_string(i).append("*************").append(to_string(i))<< endl;
    }


    return 0;
}