把黑色区域水平分成六格，垂直分成五格，得30个格子；在所有格子正中间放一颗星，在所有格子边界的交叉十字上放一颗星，如图

来源: monseigneur 于 2022-02-11 17:43:54 [旧帖] [给我悄悄话] 本文已被阅读：次

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