c++对文件操作的支持

#include <stdio.h>
#include <iostream>
#include <fstream>
using namespace std;
void main()
{       
    int a,b;
    char c;
    ofstream fout("test.txt");
    fout<<" "<<0<<" "<<1<<" "<<4<<endl;
    fout<<" "<<3<<" "<<4<<" "<<‘d‘<<endl;
    ifstream fin("test.txt");
    while (!fin.eof())
    {
        fin>>a>>b>>c;
        cout<<a<<" "<<b<<" "<<c<<endl;
    }
    cin>>a;
}