摘要: An integer is divisible by 3 if the sum of its digits is also divisible by 3. For example, 3702 is divisible by 3 and 12 (3+7+0+2) is also divisible b 阅读全文
posted @ 2017-09-13 22:18 天之道,利而不害 阅读(264) 评论(0) 推荐(0) 编辑