摘要: ``` public static boolean check(int num) { for(int i = 2; i <=Math.sqrt(num); i++) { if(num % i == 0) return false; } return true; } ``` 阅读全文
posted @ 2020-03-07 17:19 Whisperbb 阅读(94) 评论(0) 推荐(0) 编辑