#include "stdafx.h"
#include <iostream>
using namespace std;
//int _onexit(void (*function)(void)); //這句可以要也可以不要
void f1()
{
 cout << "f1()" << endl;
}
void f2()
{
 cout << "f2()" << endl;
}
void f3()
{
 cout << "f3()" << endl;
}
void f4()
{
 cout << "f4()" << endl;
}
int _tmain(int argc, _TCHAR* argv[])
{
 atexit(f1);
 atexit(f2);
 atexit(f3);
 atexit(f4);
 cout << "main function." << endl;
 return 0;
}

main
f4()
f3()
f2()
f1()