程序代码：

#include<stdio.h>
void up_and_down(int n);

int main(void)
{
    up_and_down(1);
    system("pause");
    getchar();
    return 0;

}

void up_and_down(int n)
{
    printf("Leve1 %d; n location %p\n", n, &n);
    if (n < 4)
        up_and_down(n + 1);
    printf("LEVEL %d; n loction %p\n", n, &n);
}