{"id":1039031,"date":"2024-12-31T12:29:05","date_gmt":"2024-12-31T04:29:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1039031.html"},"modified":"2024-12-31T12:29:07","modified_gmt":"2024-12-31T04:29:07","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1039031.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/12\/1eb8f4f3-ef91-494d-81b6-f04a81e75fb7.webp?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"python\u4e2d\u5982\u4f55\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\" \/><\/p>\n<p><p> \u5728Python\u4e2d\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u6709\u591a\u79cd\u65b9\u6cd5\u3002<strong>\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5d4c\u5957\u5217\u8868\u3001NumPy\u5e93\u3001\u5217\u8868\u63a8\u5bfc\u5f0f<\/strong>\u7b49\u3002\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\uff0c\u5e76\u6df1\u5165\u63a2\u8ba8\u5b83\u4eec\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u5d4c\u5957\u5217\u8868<\/p>\n<\/p>\n<p><p>\u5d4c\u5957\u5217\u8868\u662fPython\u4e2d\u6700\u7b80\u5355\u4e14\u6700\u5e38\u7528\u7684\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u6cd5\u3002\u5d4c\u5957\u5217\u8868\u5c31\u662f\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4e5f\u662f\u4e00\u4e2a\u5217\u8868\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a3x3\u7684\u4e8c\u7ef4\u6570\u7ec4<\/p>\n<p>array = [<\/p>\n<p>    [1, 2, 3],<\/p>\n<p>    [4, 5, 6],<\/p>\n<p>    [7, 8, 9]<\/p>\n<p>]<\/p>\n<p>print(array)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5d4c\u5957\u5217\u8868\u7684\u4f18\u70b9\u662f\u975e\u5e38\u76f4\u89c2\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u4f7f\u7528\u3002\u4f46\u662f\uff0c\u5f53\u6570\u7ec4\u53d8\u5927\u65f6\uff0c\u624b\u52a8\u5b9a\u4e49\u6bcf\u4e2a\u5143\u7d20\u5c31\u53d8\u5f97\u4e0d\u73b0\u5b9e\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001NumPy\u5e93<\/p>\n<\/p>\n<p><p>NumPy\u662fPython\u4e2d\u5904\u7406\u6570\u7ec4\u548c\u77e9\u9635\u7684\u6700\u91cd\u8981\u7684\u5e93\u4e4b\u4e00\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684N\u7ef4\u6570\u7ec4\u5bf9\u8c61\uff0c\u4ee5\u53ca\u4e30\u5bcc\u7684\u51fd\u6570\u5e93\u7528\u4e8e\u5904\u7406\u8fd9\u4e9b\u6570\u7ec4\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<h2><strong>\u4f7f\u7528NumPy\u5b9a\u4e49\u4e00\u4e2a3x3\u7684\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/h2>\n<p>array = np.array([<\/p>\n<p>    [1, 2, 3],<\/p>\n<p>    [4, 5, 6],<\/p>\n<p>    [7, 8, 9]<\/p>\n<p>])<\/p>\n<p>print(array)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>NumPy\u7684\u4f18\u70b9\u5305\u62ec\u9ad8\u6548\u7684\u5185\u5b58\u4f7f\u7528\u548c\u4e30\u5bcc\u7684\u6570\u7ec4\u64cd\u4f5c\u51fd\u6570<\/strong>\uff0c\u8fd9\u662f\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002\u7136\u800c\uff0cNumPy\u9700\u8981\u989d\u5916\u5b89\u88c5\uff0c\u5e76\u4e14\u5bf9\u4e8e\u7b80\u5355\u7684\u4efb\u52a1\u53ef\u80fd\u663e\u5f97\u6709\u4e9b\u8fc7\u4e8e\u590d\u6742\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u5217\u8868\u63a8\u5bfc\u5f0f<\/p>\n<\/p>\n<p><p>\u5217\u8868\u63a8\u5bfc\u5f0f\u662fPython\u7684\u4e00\u79cd\u72ec\u7279\u4e14\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u6765\u521b\u5efa\u548c\u64cd\u4f5c\u5217\u8868\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u52a8\u6001\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u5b9a\u4e49\u4e00\u4e2a3x3\u7684\u4e8c\u7ef4\u6570\u7ec4<\/p>\n<p>rows, cols = 3, 3<\/p>\n<p>array = [[i * cols + j + 1 for j in range(cols)] for i in range(rows)]<\/p>\n<p>print(array)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u5217\u8868\u63a8\u5bfc\u5f0f\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u7684\u7b80\u6d01\u548c\u7075\u6d3b\u6027<\/strong>\u3002\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u751f\u6210\u5404\u79cd\u89c4\u5219\u7684\u6570\u7ec4\uff0c\u800c\u4e0d\u9700\u8981\u624b\u52a8\u8f93\u5165\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u9ed8\u8ba4\u503c\u521d\u59cb\u5316<\/p>\n<\/p>\n<p><p>\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u521d\u59cb\u5316\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002\u8fd9\u5728\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u7ec4\u5e76\u968f\u540e\u586b\u5145\u6570\u636e\u7684\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u521d\u59cb\u5316\u4e00\u4e2a3x3\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u9ed8\u8ba4\u503c\u4e3a0<\/p>\n<p>rows, cols = 3, 3<\/p>\n<p>array = [[0 for _ in range(cols)] for _ in range(rows)]<\/p>\n<p>print(array)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u5feb\u901f\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u76f8\u540c\u521d\u59cb\u503c\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u521d\u59cb\u5316\u548c\u968f\u540e\u4fee\u6539\u6570\u7ec4\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4e8c\u7ef4\u6570\u7ec4\u64cd\u4f5c<\/p>\n<\/p>\n<p><p>\u5b9a\u4e49\u4e86\u4e8c\u7ef4\u6570\u7ec4\u4e4b\u540e\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u8bbf\u95ee\u3001\u4fee\u6539\u5143\u7d20\uff0c\u904d\u5386\u6570\u7ec4\u7b49\u3002\u6211\u4eec\u5c06\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>1\u3001\u8bbf\u95ee\u548c\u4fee\u6539\u5143\u7d20<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/p>\n<p>print(array[0][1])  # \u8f93\u51fa\u7b2c1\u884c\u7b2c2\u5217\u7684\u5143\u7d20<\/p>\n<h2><strong>\u4fee\u6539\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/strong><\/h2>\n<p>array[0][1] = 10<\/p>\n<p>print(array)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>2\u3001\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u904d\u5386\u4e8c\u7ef4\u6570\u7ec4<\/p>\n<p>for row in array:<\/p>\n<p>    for elem in row:<\/p>\n<p>        print(elem, end=&#39; &#39;)<\/p>\n<p>    print()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>3\u3001\u4f7f\u7528NumPy\u8fdb\u884c\u9ad8\u7ea7\u64cd\u4f5c<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528NumPy\u8fdb\u884c\u77e9\u9635\u8fd0\u7b97<\/p>\n<p>import numpy as np<\/p>\n<p>matrix1 = np.array([<\/p>\n<p>    [1, 2, 3],<\/p>\n<p>    [4, 5, 6]<\/p>\n<p>])<\/p>\n<p>matrix2 = np.array([<\/p>\n<p>    [7, 8],<\/p>\n<p>    [9, 10],<\/p>\n<p>    [11, 12]<\/p>\n<p>])<\/p>\n<h2><strong>\u77e9\u9635\u4e58\u6cd5<\/strong><\/h2>\n<p>result = np.dot(matrix1, matrix2)<\/p>\n<p>print(result)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>NumPy\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u7ea7\u64cd\u4f5c\uff0c\u5982\u77e9\u9635\u4e58\u6cd5\u3001\u8f6c\u7f6e\u3001\u6c42\u9006\u7b49\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u5728\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><p>\u603b\u7ed3<\/p>\n<\/p>\n<p><p>Python\u4e2d\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c<strong>\u5305\u62ec\u5d4c\u5957\u5217\u8868\u3001NumPy\u5e93\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u7b49<\/strong>\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u70b9\u548c\u9002\u7528\u573a\u666f\u3002\u5d4c\u5957\u5217\u8868\u7b80\u5355\u76f4\u89c2\uff0c\u9002\u5408\u5c0f\u89c4\u6a21\u7684\u6570\u7ec4\u5b9a\u4e49\uff1bNumPy\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u5408\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u548c\u79d1\u5b66\u8ba1\u7b97\uff1b\u5217\u8868\u63a8\u5bfc\u5f0f\u7075\u6d3b\u7b80\u6d01\uff0c\u9002\u5408\u52a8\u6001\u6570\u7ec4\u751f\u6210\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4e86\u89e3\u548c\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u5f0f\u6765\u5b9a\u4e49\u548c\u64cd\u4f5c\u4e8c\u7ef4\u6570\u7ec4\uff0c\u4ece\u800c\u63d0\u9ad8\u7f16\u7a0b\u6548\u7387\u548c\u4ee3\u7801\u8d28\u91cf\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u5728Python\u4e2d\u5904\u7406\u4e8c\u7ef4\u6570\u7ec4\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5217\u8868\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u3002\u4f60\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u5217\u8868\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u4e5f\u662f\u4e00\u4e2a\u5217\u8868\u3002\u4f8b\u5982\uff0c<code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a3&#215;3\u7684\u4e8c\u7ef4\u6570\u7ec4\u3002\u6b64\u5916\uff0c\u4f7f\u7528NumPy\u5e93\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u6570\u7ec4\u64cd\u4f5c\uff0c\u4f7f\u7528<code>numpy.array()<\/code>\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n<p><strong>\u4f7f\u7528NumPy\u5e93\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/strong><br \/>\u4f7f\u7528NumPy\u5e93\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u6027\u80fd\u548c\u529f\u80fd\u3002NumPy\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u5b66\u548c\u7edf\u8ba1\u51fd\u6570\uff0c\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u5feb\u901f\u8ba1\u7b97\u548c\u64cd\u4f5c\u3002\u6b64\u5916\uff0c\u5b83\u652f\u6301\u9ad8\u7ef4\u6570\u7ec4\u548c\u5e7f\u64ad\u64cd\u4f5c\uff0c\u4f7f\u5f97\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\u66f4\u52a0\u9ad8\u6548\u3002\u4f7f\u7528NumPy\u8fd8\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u7ec4\u7684\u5207\u7247\u548c\u7d22\u5f15\u64cd\u4f5c\uff0c\u7b80\u5316\u4e86\u6570\u636e\u5904\u7406\u7684\u590d\u6742\u6027\u3002<\/p>\n<p><strong>\u5982\u4f55\u8bbf\u95ee\u548c\u4fee\u6539Python\u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\uff1f<\/strong><br \/>\u5728Python\u7684\u5d4c\u5957\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u884c\u548c\u5217\u7684\u7d22\u5f15\u6765\u8bbf\u95ee\u5143\u7d20\u3002\u4f8b\u5982\uff0c<code>array[1][2]<\/code>\u53ef\u4ee5\u8bbf\u95ee\u7b2c\u4e8c\u884c\u7b2c\u4e09\u5217\u7684\u5143\u7d20\u3002\u5982\u679c\u9700\u8981\u4fee\u6539\u67d0\u4e2a\u5143\u7d20\uff0c\u53ea\u9700\u76f4\u63a5\u8d4b\u503c\uff0c\u5982<code>array[0][1] = 10<\/code>\u5c06\u7b2c\u4e00\u884c\u7b2c\u4e8c\u5217\u7684\u503c\u6539\u4e3a10\u3002\u5bf9\u4e8eNumPy\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u7684\u7d22\u5f15\u65b9\u5f0f\uff0c<code>array[1, 2]<\/code>\u8bbf\u95ee\u5143\u7d20\uff0c\u540c\u65f6\u4fee\u6539\u5143\u7d20\u7684\u65b9\u5f0f\u4e5f\u662f\u76f4\u63a5\u8d4b\u503c\uff0c\u4f8b\u5982<code>array[0, 1] = 10<\/code>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u6709\u591a\u79cd\u65b9\u6cd5\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5d4c\u5957\u5217\u8868\u3001NumPy\u5e93\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u7b49\u3002\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb [&hellip;]","protected":false},"author":3,"featured_media":1039032,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1039031"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1039031"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1039031\/revisions"}],"predecessor-version":[{"id":1039035,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1039031\/revisions\/1039035"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1039032"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1039031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1039031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1039031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}