#include <Stdio.h>
float Max = 0, Min = 0;
main()
{
    float a[10] = { 89,95,87.5,100,67.5,97,59,84,73,90 };
    float aver ( float x[] );
    printf ("%f\nmax is %f\nmin is %f\n",aver(a),Max,Min);
}

    float aver ( float x[] )
    {
        float sum = 0, av;
        int i;

        for ( i = 0; i < 10; i++ )
        {
            sum = sum + x[i];
            if ( x[i] > Max )
                Max = x[i];
            if ( x[i] < Min )
                Min = x[i];
        }
        av = sum / 10;
        return av;
        
    }
为什么Max和Min输出还是0？

谢谢两位版主