程序代码：

#include<stdio.h>
void average(float *p, int n)
{
    float *p_end;
    float sum = 0, aver;
    p_end = p + n - 1;
    for (; p <= p_end; p++)
        sum = sum + (*p);
    aver = sum / n;
    printf("%5.2f\n", aver);
}

void search(float(*p)[4], int n)
{
    int i;
    for (i = 0; i < 4; i++)
        printf("%5.2f ", *(*(p + n) + i));
    printf("\n");
}

int main()
{
    void average(float *p, int n);
    void search(float(*p)[4], int n);
    float score[3][4] = { {65,67,70,60},{80,87,90,81},{90,99,100,98} };
    average(score, 12);
    search(score, 2);
    return 0;
}