程序代码：

#include <stdio.h>

#define MAX 100

int main (int argc, char *argv[])
{
    int  i, j, status;

    printf (" 素数: \n");
    for (i  = 2; i < MAX; i++)
    {
        for (j = 2; j  <  i; j++)
        {
            if ( i % j == 0)
            {
                status = 0;
                break;
            }
            else
                status = 1;
        }

        if (status == 1)
        printf ("%3d", i);

    }
    printf ("\n");
    return 0;
}