输出2—200之间的所有素数
#include <stdio.h>

int sushu(int a) {
int s,b = 2;
for (a% b != 0 ? s = 1 : s = 2;b<a;b++) {
}
return s;
}
int main()
{
int a;
for (a=2;a<201;a++) {
sushu(a)==1?printf("%4d",a):1;
}
}