这是我的两个解。第一个是c#，第二个是C语言:

C#:

const int limit = 1000;

Action<int>[] actions = new Action<int>[2];
actions[0] = (n) => { Console.WriteLine(n); };
actions[1] = (n) => { Console.WriteLine(n);  actions[Math.Sign(limit - n-1)](n + 1); };

actions[1](0);

C:

#define sign(x) (( x >> 31 ) | ( (unsigned int)( -x ) >> 31 ))

void (*actions[3])(int);

void Action0(int n)
{
    printf("%d", n);
}

void Action1(int n)
{
    int index;
    printf("%d\n", n);
    index = sign(998-n)+1;
    actions[index](++n);
}

void main()
{
    actions[0] = &Action0;
    actions[1] = 0; //Not used
    actions[2] = &Action1;

    actions[2](0);
}

#include<stdio.h>
int b=1;
int printS(){    
    printf("%d\n",b);
    b++;
    (1001-b) && printS();
}
int main(){printS();}

只需使用std::copy()和一个特殊的迭代器。

#include <algorithm>
#include <iostream>
#include <iterator>

struct number_iterator
{
    typedef std::input_iterator_tag iterator_category;
    typedef int                     value_type;
    typedef std::size_t             difference_type;
    typedef int*                    pointer;
    typedef int&                    reference;

    number_iterator(int v): value(v)                {}
    bool operator != (number_iterator const& rhs)   { return value != rhs.value;}
    number_iterator operator++()                    { ++value; return *this;}
    int operator*()                                 { return value; }
    int value;
};



int main()
{
    std::copy(number_iterator(1), 
              number_iterator(1001), 
              std::ostream_iterator<int>(std::cout, " "));
}

被接受答案的c++变体:

void print(vector<int> &v, int ind)
{
    v.at(ind);
    std::cout << ++ind << std::endl;
    try
    {
        print(v, ind);
    }
    catch(std::out_of_range &e)
    {
    }
}

int main()
{
    vector<int> v(1000);
    print(v, 0);
}

既不是循环语句也不是条件语句，至少它不会在我的机器上崩溃:)。使用一些指针魔法我们有。

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

typedef void (*fp) (void *, int );

void end(fp* v, int i){
    printf("1000\n");
    return;
}

void print(fp *v, int i)
{
    printf("%d\n", 1000-i);
    v[i-1] = (fp)print;
    v[0] = (fp)end;
    (v[i-1])(v, i-1);

}

int main(int argc, char *argv[])
{
    fp v[1000];

    print(v, 1000);

    return 0;
}

#include <stdio.h>
void main(int i){printf("%d\n",i)&&i++<1000&&(*((int*)&i-1)-=5);} 

另一个:

#include <stdio.h>
int main(int i){return i<=1000&&printf("%d\n",i)&&main(++i);}