{"id":1090670,"date":"2025-01-08T14:04:40","date_gmt":"2025-01-08T06:04:40","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1090670.html"},"modified":"2025-01-08T14:04:43","modified_gmt":"2025-01-08T06:04:43","slug":"%e5%9c%86%e5%91%a8%e7%8e%87%e5%9c%a8python%e4%b8%ad%e5%a6%82%e4%bd%95%e8%be%93%e5%85%a5-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1090670.html","title":{"rendered":"\u5706\u5468\u7387\u5728python\u4e2d\u5982\u4f55\u8f93\u5165"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24203223\/dd892c08-87b0-47a6-ac34-8796f62ba086.webp\" alt=\"\u5706\u5468\u7387\u5728python\u4e2d\u5982\u4f55\u8f93\u5165\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u8f93\u5165\u5706\u5468\u7387\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u6570\u5b66\u5e93\u4e2d\u7684pi\u5e38\u91cf\u3001\u624b\u52a8\u5b9a\u4e49pi\u503c\u3001\u4ee5\u53ca\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230pi\u503c\u3002<\/strong>\u5176\u4e2d\uff0c\u4f7f\u7528\u6570\u5b66\u5e93\u4e2d\u7684pi\u5e38\u91cf\u662f\u6700\u5e38\u89c1\u548c\u63a8\u8350\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u7b80\u6d01\u3001\u51c6\u786e\uff0c\u5e76\u4e14\u6613\u4e8e\u4f7f\u7528\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u8ba8\u8bba\u8fd9\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528math\u5e93\u4e2d\u7684pi\u5e38\u91cf<\/p>\n<\/p>\n<p><p>Python\u7684math\u5e93\u63d0\u4f9b\u4e86\u8bb8\u591a\u6570\u5b66\u51fd\u6570\u548c\u5e38\u91cf\uff0c\u5176\u4e2d\u5305\u62ec\u5706\u5468\u7387pi\u3002\u4f7f\u7528math\u5e93\u4e2d\u7684pi\u5e38\u91cf\u662f\u6700\u7b80\u5355\u548c\u51c6\u786e\u7684\u65b9\u6cd5\u3002\u9996\u5148\uff0c\u4f60\u9700\u8981\u5bfc\u5165math\u5e93\uff0c\u7136\u540e\u4f60\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528math.pi\u6765\u8868\u793a\u5706\u5468\u7387\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import math<\/p>\n<p>pi = math.pi<\/p>\n<p>print(pi)  # \u8f93\u51fa 3.141592653589793<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u7b80\u6d01\u660e\u4e86<\/strong>\uff1a\u65e0\u9700\u624b\u52a8\u5b9a\u4e49\u6216\u8ba1\u7b97\u3002<\/li>\n<li><strong>\u9ad8\u7cbe\u5ea6<\/strong>\uff1amath.pi\u63d0\u4f9b\u4e86\u8db3\u591f\u7684\u7cbe\u5ea6\uff0c\u6ee1\u8db3\u5927\u591a\u6570\u5e94\u7528\u9700\u6c42\u3002<\/li>\n<li><strong>\u5185\u7f6e\u5e93\u652f\u6301<\/strong>\uff1amath\u5e93\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u65e0\u9700\u989d\u5916\u5b89\u88c5\u3002<\/li>\n<\/ul>\n<p><p>\u4e8c\u3001\u624b\u52a8\u5b9a\u4e49pi\u503c<\/p>\n<\/p>\n<p><p>\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u624b\u52a8\u5b9a\u4e49\u5706\u5468\u7387\u7684\u503c\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5bf9\u7cbe\u5ea6\u8981\u6c42\u4e0d\u9ad8\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">pi = 3.141592653589793<\/p>\n<p>print(pi)  # \u8f93\u51fa 3.141592653589793<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5b9a\u4e49\u4efb\u610f\u7cbe\u5ea6\u7684pi\u503c\u3002<\/li>\n<li><strong>\u63a7\u5236\u529b<\/strong>\uff1a\u5b8c\u5168\u7531\u7528\u6237\u63a7\u5236pi\u7684\u503c\u3002<\/li>\n<\/ul>\n<p><p><strong>\u52a3\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u5bb9\u6613\u51fa\u9519<\/strong>\uff1a\u624b\u52a8\u5b9a\u4e49\u5bb9\u6613\u51fa\u73b0\u9519\u8bef\u6216\u7cbe\u5ea6\u4e0d\u8db3\u7684\u95ee\u9898\u3002<\/li>\n<li><strong>\u4e0d\u63a8\u8350<\/strong>\uff1a\u9664\u975e\u6709\u7279\u6b8a\u9700\u6c42\uff0c\u5426\u5219\u4e0d\u5efa\u8bae\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<p><p>\u4e09\u3001\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230pi\u503c<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u4e00\u4e9b\u7279\u5b9a\u7684\u5e94\u7528\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u8ba1\u7b97\u6765\u5f97\u5230\u5706\u5468\u7387\u7684\u503c\u3002\u8ba1\u7b97pi\u503c\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u6bd4\u5982\u4f7f\u7528\u83b1\u5e03\u5c3c\u5179\u516c\u5f0f\u3001\u8499\u7279\u5361\u7f57\u65b9\u6cd5\u7b49\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u83b1\u5e03\u5c3c\u5179\u516c\u5f0f\u8ba1\u7b97pi\u503c\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def calculate_pi(n_terms):<\/p>\n<p>    pi = 0<\/p>\n<p>    for k in range(n_terms):<\/p>\n<p>        pi += ((-1)  k) \/ (2 * k + 1)<\/p>\n<p>    return 4 * pi<\/p>\n<p>pi = calculate_pi(1000000)<\/p>\n<p>print(pi)  # \u8f93\u51fa\u63a5\u8fd1\u4e8e 3.141592653589793<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u8da3\u5473\u6027<\/strong>\uff1a\u901a\u8fc7\u8ba1\u7b97\u53ef\u4ee5\u52a0\u6df1\u5bf9pi\u7684\u7406\u89e3\u3002<\/li>\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u8ba1\u7b97\u7684\u7cbe\u5ea6\u3002<\/li>\n<\/ul>\n<p><p><strong>\u52a3\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u590d\u6742\u6027<\/strong>\uff1a\u8ba1\u7b97\u65b9\u6cd5\u53ef\u80fd\u6bd4\u8f83\u590d\u6742\uff0c\u9700\u8981\u7f16\u5199\u989d\u5916\u7684\u4ee3\u7801\u3002<\/li>\n<li><strong>\u6548\u7387\u95ee\u9898<\/strong>\uff1a\u8ba1\u7b97pi\u503c\u53ef\u80fd\u9700\u8981\u5927\u91cf\u8ba1\u7b97\u8d44\u6e90\u548c\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<p><p>\u56db\u3001\u4f7f\u7528numpy\u5e93\u4e2d\u7684pi\u5e38\u91cf<\/p>\n<\/p>\n<p><p>\u5982\u679c\u4f60\u5728\u8fdb\u884c\u79d1\u5b66\u8ba1\u7b97\u65f6\u4f7f\u7528\u4e86numpy\u5e93\uff0cnumpy\u5e93\u540c\u6837\u63d0\u4f9b\u4e86pi\u5e38\u91cf\u3002\u4f7f\u7528numpy\u5e93\u4e2d\u7684pi\u5e38\u91cf\u975e\u5e38\u65b9\u4fbf\uff0c\u7279\u522b\u662f\u5728\u8fdb\u884c\u6570\u7ec4\u548c\u77e9\u9635\u8fd0\u7b97\u65f6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>pi = np.pi<\/p>\n<p>print(pi)  # \u8f93\u51fa 3.141592653589793<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li><strong>\u7b80\u6d01<\/strong>\uff1a\u4e0emath\u5e93\u7c7b\u4f3c\uff0c\u4f7f\u7528\u65b9\u4fbf\u3002<\/li>\n<li><strong>\u9ad8\u7cbe\u5ea6<\/strong>\uff1a\u63d0\u4f9b\u8db3\u591f\u7684\u7cbe\u5ea6\u3002<\/li>\n<li><strong>\u79d1\u5b66\u8ba1\u7b97\u652f\u6301<\/strong>\uff1anumpy\u5e93\u5e7f\u6cdb\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\uff0c\u4f7f\u7528numpy\u7684pi\u5e38\u91cf\u53ef\u4ee5\u65e0\u7f1d\u96c6\u6210\u5230\u5176\u4ed6\u8ba1\u7b97\u4e2d\u3002<\/li>\n<\/ul>\n<p><p><strong>\u603b\u7ed3<\/strong><\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\u8f93\u5165\u5706\u5468\u7387\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u6700\u5e38\u7528\u548c\u63a8\u8350\u7684\u65b9\u6cd5\u662f\u4f7f\u7528math\u5e93\u4e2d\u7684pi\u5e38\u91cf\uff0c\u56e0\u4e3a\u5b83\u7b80\u6d01\u3001\u51c6\u786e\uff0c\u5e76\u4e14\u6613\u4e8e\u4f7f\u7528\u3002\u624b\u52a8\u5b9a\u4e49\u548c\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230pi\u503c\u7684\u65b9\u6cd5\u9002\u7528\u4e8e\u7279\u5b9a\u7684\u5e94\u7528\u573a\u666f\uff0c\u4f46\u4e00\u822c\u60c5\u51b5\u4e0b\u4e0d\u5efa\u8bae\u4f7f\u7528\u3002numpy\u5e93\u4e2d\u7684pi\u5e38\u91cf\u4e5f\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\uff0c\u7279\u522b\u662f\u5728\u8fdb\u884c\u79d1\u5b66\u8ba1\u7b97\u65f6\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8ba9\u4f60\u7684\u4ee3\u7801\u66f4\u52a0\u9ad8\u6548\u548c\u51c6\u786e\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u5706\u5468\u7387\u7684\u7cbe\u786e\u503c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u5982\u679c\u9700\u8981\u4f7f\u7528\u5706\u5468\u7387\u7684\u7cbe\u786e\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528<code>math<\/code>\u6a21\u5757\u3002\u901a\u8fc7<code>import math<\/code>\u5bfc\u5165\u8be5\u6a21\u5757\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528<code>math.pi<\/code>\u6765\u83b7\u53d6\u5706\u5468\u7387\u7684\u503c\u3002\u8fd9\u4e2a\u503c\u975e\u5e38\u63a5\u8fd1\u771f\u5b9e\u7684\u5706\u5468\u7387\uff0c\u9002\u5408\u5927\u591a\u6570\u8ba1\u7b97\u9700\u6c42\u3002<\/p>\n<p><strong>Python\u4e2d\u6709\u54ea\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u8ba1\u7b97\u5706\u5468\u7387\uff1f<\/strong><br \/>\u9664\u4e86\u4f7f\u7528<code>math.pi<\/code>\uff0cPython\u8fd8\u6709\u591a\u79cd\u65b9\u6cd5\u6765\u8ba1\u7b97\u5706\u5468\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u83b1\u5e03\u5c3c\u8328\u516c\u5f0f\u3001\u8499\u7279\u5361\u7f57\u65b9\u6cd5\u6216\u5176\u4ed6\u6570\u5b66\u516c\u5f0f\u3002\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u76f8\u5e94\u7684\u51fd\u6570\u6765\u5b9e\u73b0\uff0c\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u9009\u62e9\u6765\u6ee1\u8db3\u4e0d\u540c\u7684\u8ba1\u7b97\u9700\u6c42\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u683c\u5f0f\u5316\u5706\u5468\u7387\u7684\u8f93\u51fa\uff1f<\/strong><br \/>\u5982\u679c\u60f3\u8981\u4ee5\u7279\u5b9a\u7684\u7cbe\u5ea6\u683c\u5f0f\u5316\u8f93\u51fa\u5706\u5468\u7387\uff0c\u53ef\u4ee5\u4f7f\u7528<code>format()<\/code>\u51fd\u6570\u6216f-string\u3002\u6bd4\u5982\uff0c\u901a\u8fc7<code>print(f&quot;{math.pi:.2f}&quot;)<\/code>\u53ef\u4ee5\u5c06\u5706\u5468\u7387\u683c\u5f0f\u5316\u4e3a\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d\uff0c\u4ece\u800c\u6ee1\u8db3\u7279\u5b9a\u7684\u663e\u793a\u9700\u6c42\u3002\u8fd9\u6837\u7684\u683c\u5f0f\u5316\u53ef\u4ee5\u5728\u62a5\u8868\u6216\u56fe\u5f62\u754c\u9762\u4e2d\u4f7f\u6570\u636e\u66f4\u52a0\u7f8e\u89c2\u548c\u6613\u8bfb\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u8f93\u5165\u5706\u5468\u7387\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u6570\u5b66\u5e93\u4e2d\u7684pi\u5e38\u91cf\u3001\u624b\u52a8\u5b9a\u4e49pi\u503c\u3001\u4ee5\u53ca\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230pi\u503c\u3002\u5176\u4e2d\uff0c\u4f7f\u7528 [&hellip;]","protected":false},"author":3,"featured_media":1090681,"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\/1090670"}],"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=1090670"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1090670\/revisions"}],"predecessor-version":[{"id":1090683,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1090670\/revisions\/1090683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1090681"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1090670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1090670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1090670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}