yoshiyoshifujii https://blog.hatena.ne.jp/yoshiyoshifujii/ 毎日Learning https://yoshiyoshifujii.hatenablog.com/ Python L-99 def remove_at(l, num): return [v for i,v in enumerate(l) if (i+1) != num] if isinstance(l, list) else None if __name__ == "__main__": print remove_at("a", 3) == None print remove_at(["a"], -1) == ["a"] print remove_at(["a"], 0) == ["a"] print remove_at(["a"], 1) == [] print remove_at(["a", "b"], -2)… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyoshiyoshifujii.hatenablog.com%2Fentry%2F20100728%2Fp9" title="P20 (*)リストからK番目の要素を削除する。 - 毎日Learning" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2010-07-28 00:00:08 rich https://yoshiyoshifujii.hatenablog.com/entry/20100728/p9 1.0 100%