# include <stdio.h>
# include <malloc.h>

void f(int *p, int len)
{
    int i, j, t;
    for (i=0; i<len-1; i++)
    {
        for (j=0; j<len-1-i; j++)
        {
            if (p[j] > p[j+1])
            {
                t = p[j];
                p[j] = p[j+1];
                p[j+1] = t;
            }
        }
    }
}

int main(void)
{
    int * q, len, i;
    q = (int *)malloc(sizeof(int)*len);

    printf("input len:\n");
    scanf("%d", &len);

    printf("input len number:\n");
    for (i=0; i<len; i++)
        scanf("%d", &q[i]);

    f(q, len);

    for (i=0; i<6; i++)
        printf("%d ", q[i]);
    printf("\n");

    return 0;
}

后面总是带垃圾值。。。。。

不对哩，还是有垃圾值。。。。

呵呵。。。。what？不要冷笑嘛，高手，能指教一下嘛。