首先这个数列有问题,比如它的第十项是 12345678910 还是 1234567900 ?(第二种进位了) 如果是前面一个,我们先考虑写出递推公式。 可以将 a n + 1 a_ {n+1} 看作 a n a_n 后面填上一堆 0 0 再加上. 知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区. 1234从来没有被用来称呼过 星穹铁道。 官方为了强调星穹铁道是崩坏ip正统续作,所以在公开场合一定是叫做 崩坏星穹铁道,不会只用星穹铁道四个字。 所以,崩坏星穹铁道可以称为123456。 另外,.

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