程序代码：

#include <stdio.h>

int main(int argc, char *argv[])
{
    int a[9]={5,7,4,2,8,10,6,9,1};
    int min=a[0]; //定义最小值及其下标
    int max=a[0]; //定义最大值及其下标
    int i;
    for (i=1 ; i!=9 ; ++i)
    {
        min = min<a[i]?min:a[i];
        max = max>a[i]?max:a[i];
    }

    printf ("max is =%d\n",max);
    printf ("min is =%d\n",min);
    return 0;
}