# include <stdio.h>

int main(void)
{
    int i;
    int sum = 0;
    int cnt = 0;
    double avg;

    for (i=1; i<101; ++i)
    {
        if (i%2 == 1)
        {
            sum += i;
            ++cnt;
        }   
    }
    avg = sum / cnt;
   
    printf("sum = %d\n", sum);
    printf("cnt = %d\n", cnt);
    printf("avg = %d\n", avg);

    return 0;
}
/*
运行结果为：sum = 2500
            cnt = 50
            avg = 0》》》》就是这里为什么会是零？？？
            Press any key to continue
            Press any key to continue
*/

谢谢，我已经改正了。