37. 退出程序

#include <stdio.h>
#include <stdlib.h>

void beforeExit()
{
    printf("at exit\n");
}

int main()
{
    //abort();
    //printf("abort\n");
    atexit(beforeExit);
    exit(EXIT_SUCCESS);
    printf("exit\n");
    _Exit(EXIT_FAILURE);
}