2026-02-26 22:51
Diff
import numpy as np
l = [[0, 0, 0, 0], [0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1]]
a = np.array(l)
# a = array([[0, 0, 0, 0],
# [0, 0, 0, 1],
# [0, 0, 0, 1],
# [0, 0, 0, 1]], dtype=int64)
# поворот:
np.rot90(a)
# a = array([[0, 1, 1, 1],
# [0, 0, 0, 0],
# [0, 0, 0, 0],
# [0, 0, 0, 0]], dtype=int64)
# можно несколько раз повернуть:
np.rot90(a, k=2)
# a = array([[1, 0, 0, 0],
# [1, 0, 0, 0],
# [1, 0, 0, 0],
# [0, 0, 0, 0]], dtype=int64)
# "вернуть" к обычному списку списков:
np.rot90(a).tolist()
# => [[0, 1, 1, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
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Гахов","removed":false},"question":{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":5,"title":"Python","slug":"python","questions_count":451,"locale":"ru"},"tags":[{"id":582,"slug":"python-massivy","name":"python массивы"}],"id":360,"answers_count":1,"slug":"kak-povernut-massiv-na-90-gradusov-python","state":"published","title":"Как повернуть массив на 90 градусов python\r","created_at":"2021-11-01T15:45:27.584Z","details":null,"best_answer_id":953,"related_stacks_count":5},"id":953,"state":"active","body":"Проще всего это будет сделать с помощью **Numpy**:\r\n\r\n```python\r\nimport numpy as np\r\n\r\nl = [[0, 0, 0, 0], [0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1]]\r\n\r\na = np.array(l)\r\n\r\n# a = array([[0, 0, 0, 0],\r\n# [0, 0, 0, 1],\r\n# [0, 0, 0, 1],\r\n# [0, 0, 0, 1]], dtype=int64)\r\n\r\n# поворот:\r\n\r\nnp.rot90(a)\r\n\r\n# a = array([[0, 1, 1, 1],\r\n# [0, 0, 0, 0],\r\n# [0, 0, 0, 0],\r\n# [0, 0, 0, 0]], dtype=int64)\r\n\r\n# можно несколько раз повернуть:\r\n\r\nnp.rot90(a, k=2)\r\n\r\n# a = array([[1, 0, 0, 0],\r\n# [1, 0, 0, 0],\r\n# [1, 0, 0, 0],\r\n# [0, 0, 0, 0]], dtype=int64)\r\n\r\n# \"вернуть\" к обычному списку списков:\r\n\r\nnp.rot90(a).tolist()\r\n# => [[0, 1, 1, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]\r\n```\r\nСоответственно для поворота по часовой стрелке используйте ```np.rot90(a, k=3)``` (270 градусов).\r\n\r\nЕсли не использовать Numpy, то для поворота **по часовой** стрелке есть такой способ:\r\n\r\n```python\r\ndef transposed(matrix):\r\n return [[*col] for col in zip(*matrix)]\r\n \r\ndef rot90:\r\n return list(map(reversed, transposed(matrix)))\r\n\r\n# или в одно действие\r\n\r\ndef rot90(matrix):\r\n return [list(reversed(col)) for col in zip(*matrix)]\r\n```\r\n\r\n... а для поворота **против часовой**:\r\n\r\n```python\r\ndef rot90(matrix):\r\n return [list(row) for row in list(zip(*matrix))[::-1]]\r\n```","votes_up_count":0,"votes_down_count":0,"created_at":"2022-10-18T14:48:10.625Z","user_id":376702,"category_slug":"python"}],"relatedQuestions":[{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":5,"title":"Python","slug":"python","questions_count":451,"locale":"ru"},"tags":[{"id":582,"slug":"python-massivy","name":"python массивы"}],"id":330,"answers_count":1,"slug":"kak-zagruzit-csv-fayl-v-dvumernyy-massiv-python","state":"published","title":"Как загрузить csv файл в двумерный массив 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{.mantine-hidden-from-lg {display: none !important;}}@media (max-width: 87.99375em) {.mantine-visible-from-xl {display: none !important;}}@media (min-width: 88em) {.mantine-hidden-from-xl {display: none !important;}}</style><script type="application/ld+json">{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"Как повернуть массив на 90 градусов python\r","answerCount":1,"datePublished":"2021-11-01T15:45:27.584Z","author":{"@type":"Person","name":"Человек-Молекула"},"acceptedAnswer":{"@type":"Answer","text":"Проще всего это будет сделать с помощью **Numpy**:\r\n\r\n```python\r\nimport numpy as np\r\n\r\nl = [[0, 0, 0, 0], [0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1]]\r\n\r\na = np.array(l)\r\n\r\n# a = array([[0, 0, 0, 0],\r\n# [0, 0, 0, 1],\r\n# [0, 0, 0, 1],\r\n# [0, 0, 0, 1]], dtype=int64)\r\n\r\n# поворот:\r\n\r\nnp.rot90(a)\r\n\r\n# a = array([[0, 1, 1, 1],\r\n# [0, 0, 0, 0],\r\n# [0, 0, 0, 0],\r\n# [0, 0, 0, 0]], dtype=int64)\r\n\r\n# можно несколько раз повернуть:\r\n\r\nnp.rot90(a, k=2)\r\n\r\n# a = array([[1, 0, 0, 0],\r\n# [1, 0, 0, 0],\r\n# [1, 0, 0, 0],\r\n# [0, 0, 0, 0]], dtype=int64)\r\n\r\n# "вернуть" к обычному списку списков:\r\n\r\nnp.rot90(a).tolist()\r\n# => [[0, 1, 1, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]\r\n```\r\nСоответственно для поворота по часовой стрелке используйте ```np.rot90(a, k=3)``` (270 градусов).\r\n\r\nЕсли не использовать Numpy, то для поворота **по часовой** стрелке есть такой способ:\r\n\r\n```python\r\ndef transposed(matrix):\r\n return [[*col] for col in zip(*matrix)]\r\n \r\ndef rot90:\r\n return list(map(reversed, transposed(matrix)))\r\n\r\n# или в одно действие\r\n\r\ndef rot90(matrix):\r\n return [list(reversed(col)) for col in zip(*matrix)]\r\n```\r\n\r\n... а для поворота **против часовой**:\r\n\r\n```python\r\ndef rot90(matrix):\r\n return [list(row) for row in list(zip(*matrix))[::-1]]\r\n```","datePublished":"2022-10-18T14:48:10.625Z","upvoteCount":0,"author":{"@type":"Person","name":"Игорь Гахов"},"url":"https://ru.hexlet.io/qna/python/questions/kak-povernut-massiv-na-90-gradusov-python#answer-953"}}}</script><div style="--container-size:var(--container-size-lg);margin-top:var(--mantine-spacing-xl);height:100%" class="m_7485cace mantine-Container-root" data-size="lg" data-strategy="block"><script type="application/ld+json">{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"position":1,"@type":"ListItem","item":{"@id":"/qna","name":"Вопросы и ответы"}},{"position":2,"@type":"ListItem","item":{"@id":"/qna/python/questions","name":"Python"}},{"position":3,"@type":"ListItem","item":{"@id":"/qna/python/questions/kak-povernut-massiv-na-90-gradusov-python","name":"Как повернуть массив на 90 градусов python\r"}}]}</script><div style="margin-bottom:var(--mantine-spacing-xs)" class="m_8b3717df mantine-Breadcrumbs-root"><a 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style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;font-size:var(--mantine-font-size-h1);font-weight:lighter;text-align:center" class="m_6d731127 mantine-Stack-root">0<a style="color:inherit" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/qna/python/questions/kak-povernut-massiv-na-90-gradusov-python/answers/953/vote"><div style="--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-thumb-up "><path d="M7 11v8a1 1 0 0 1 -1 1h-2a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1h3a4 4 0 0 0 4 -4v-1a2 2 0 0 1 4 0v5h3a2 2 0 0 1 2 2l-1 5a2 3 0 0 1 -2 2h-7a3 3 0 0 1 -3 -3"></path></svg></div></a><div style="--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-check "><path d="M5 12l5 5l10 -10"></path></svg></div></div><div style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;width:100%;min-width:0rem" class="m_6d731127 mantine-Stack-root"><div style="margin-bottom:auto" class="m_d08caa0 mantine-Typography-root"><p>Проще всего это будет сделать с помощью <strong>Numpy</strong>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">import numpy as np
l = [[0, 0, 0, 0], [0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1]]
a = np.array(l)
# a = array([[0, 0, 0, 0],
# [0, 0, 0, 1],
# [0, 0, 0, 1],
# [0, 0, 0, 1]], dtype=int64)
# поворот:
np.rot90(a)
# a = array([[0, 1, 1, 1],
# [0, 0, 0, 0],
# [0, 0, 0, 0],
# [0, 0, 0, 0]], dtype=int64)
# можно несколько раз повернуть:
np.rot90(a, k=2)
# a = array([[1, 0, 0, 0],
# [1, 0, 0, 0],
# [1, 0, 0, 0],
# [0, 0, 0, 0]], dtype=int64)
# "вернуть" к обычному списку списков:
np.rot90(a).tolist()
# => [[0, 1, 1, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Соответственно для поворота по часовой стрелке используйте <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">np.rot90(a, k=3)</code> (270 градусов).</p>
<p>Если не использовать Numpy, то для поворота <strong>по часовой</strong> стрелке есть такой способ:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">def transposed(matrix):
return [[*col] for col in zip(*matrix)]
def rot90:
return list(map(reversed, transposed(matrix)))
# или в одно действие
def rot90(matrix):
return [list(reversed(col)) for col in zip(*matrix)]</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>... а для поворота <strong>против часовой</strong>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">def rot90(matrix):
return [list(row) for row in list(zip(*matrix))[::-1]]</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div></div><div class="m_3eebeb36 mantine-Divider-root" data-orientation="horizontal" role="separator"></div><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;font-size:var(--mantine-font-size-sm)" class="m_4081bf90 mantine-Group-root"><div style="--group-gap:var(--mantine-spacing-xs);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;margin-inline-start:auto" class="m_4081bf90 mantine-Group-root"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-calendar "><path d="M4 7a2 2 0 0 1 2 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