第4章， 4.14.2打印1~100之间的素数

#include <stdio.h>int main(void){int i, j, k;for(i = 1; i <= 100; ++i){k = 0;for(j = 1; j <= i; ++j){if(i%j == 0)k++;}if(k < 3)//素数，只有1与他本身能整除 printf("%d ", i);}printf("\n");return 0;}