格納されたパステーブルを取得する、ランダムな文字列を生成します

#include "stdafx.h"

// mothed  1   2019-04-28 17:07:19

#include <string>

#include <time.h>

#include <stdio.h>

#include <iostream>

#include <cstring>

#include <shlobj.h> 

using namespace std;

 
 char *randstrname(char *str, const int len)
{
    srand(time(NULL));
    int i;
    for (i = 0; i < len; ++i)
    {
        switch ((rand() % 3))
        {
        case 1:
            str[i] = 'A' + rand() % 26;
            break;
        case 2:
            str[i] = 'a' + rand() % 26;
            break;
        default:
            str[i] = '0' + rand() % 10;
            break;
        }
    }
	str[i++] = '.';
	str[i++] = 'j';
	str[i++] = 'p';
	str[i++] = 'g';
    str[i++] = '\0';
    return str;
}

int main(){

    char name[20];
    cout << randstrname(name, 5) << endl;

		string path = "C:\\Users\\23607\\Desktop\\";

		path.append(name);
	//	path=path+name;
		//	path.append(".jpg");
		cout << path<< endl;

		TCHAR MyDir[100];  

//		SHGetSpecialFolderPath(this->GetSafeHwnd(),MyDir,CSIDL_APPDATA,0);

		SHGetSpecialFolderPath(0,MyDir,CSIDL_DESKTOPDIRECTORY,0);
		cout << MyDir<< endl;

				string path2 ;
		path2=MyDir;
		path2.append("\\");
		path2.append(name);
		cout <<"p2 "<< path2<< endl;


    return 0;

}