输出1~100以内的所有素数

/*****************************************************
copyright (C), 2014-2015, Lighting Studio. Co.,     Ltd.
File name：
Author：Jerey_Jobs    Version:0.1    Date:
Description：输出100以内的素数.
Funcion List:
*****************************************************/

#include <stdio.h>

int main()
{
int i;
int j;

int flag = 0;
int count = 0;

for (j = 2; j <= 100; j++)
{
for (i = 2; i<= j/2; i++)
{
if (j % i == 0)
{
flag = 1;
break;
}
}

if (flag != 1)
{
count++;
printf("%d\t",j);
}

flag = 0;
}

printf("\n");
printf("the number of prime is:%d\n",count);

return 0;
}