求a，b之间的素数怎么做呀

Question

111，，，1111aaaa
aaaaaaaaaaaaaaaaa

Answer 1

int j;
for(int i=a;i<=b;i++)
{
  for(j=2;j*j<=b;j++)
    if(i%j==0)
      break;
  if(j*j>b)
    printf("%d ",i);
}