{"id":175224,"date":"2024-05-08T18:47:21","date_gmt":"2024-05-08T10:47:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/175224.html"},"modified":"2024-05-08T18:47:27","modified_gmt":"2024-05-08T10:47:27","slug":"%e5%9c%a8python%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e7%94%a8%e4%bb%a3%e7%a0%81%e6%8a%8a%e8%b4%a8%e6%95%b0%e7%bb%99%e8%a1%a8%e7%a4%ba%e5%87%ba%e6%9d%a5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/175224.html","title":{"rendered":"\u5728Python\u4e2d\uff0c\u5982\u4f55\u7528\u4ee3\u7801\u628a\u8d28\u6570\u7ed9\u8868\u793a\u51fa\u6765"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27053038\/12c93d6b-931e-45ac-8661-c27f24b59c50.webp\" alt=\"\u5728Python\u4e2d\uff0c\u5982\u4f55\u7528\u4ee3\u7801\u628a\u8d28\u6570\u7ed9\u8868\u793a\u51fa\u6765\" \/><\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u8868\u793a\u8d28\u6570\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u4e00\u6bb5\u4ee3\u7801\u6765\u5b9e\u73b0\uff0c\u6838\u5fc3\u601d\u8def\u4e3b\u8981\u5305\u62ec\uff1a<strong>\u7b5b\u9009\u6cd5\uff08\u4f8b\u5982\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff09<\/strong>\u3001<strong>\u66b4\u529b\u6cd5<\/strong>\u3001<strong>\u4f18\u5316\u7684\u8fed\u4ee3\u6cd5<\/strong>\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u7279\u70b9\uff0c\u4f46<strong>\u7b5b\u9009\u6cd5<\/strong>\u56e0\u4e3a\u5176\u9ad8\u6548\u5904\u7406\u5927\u91cf\u6570\u636e\u7684\u80fd\u529b\u800c\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u89e3\u91ca\u7b5b\u9009\u6cd5\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><p><strong>\u7b5b\u9009\u6cd5<\/strong>\uff0c\u7279\u522b\u662f\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff0c\u662f\u4e00\u79cd\u9ad8\u6548\u7b5b\u9009\u8d28\u6570\u7684\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u9996\u5148\u5047\u8bbe\u4e00\u4e2a\u8db3\u591f\u5927\u7684\u6570\u5217\u5168\u90e8\u4e3a\u8d28\u6570\uff0c\u7136\u540e\u4ece\u7b2c\u4e00\u4e2a\u8d28\u65702\u5f00\u59cb\uff0c\u5254\u96642\u7684\u500d\u6570\uff0c\u63a5\u7740\u662f\u4e0b\u4e00\u4e2a\u672a\u88ab\u5254\u9664\u7684\u6570\uff08\u5373\u4e0b\u4e00\u4e2a\u8d28\u6570\uff09\u7684\u500d\u6570\uff0c\u5982\u6b64\u5f80\u590d\uff0c\u76f4\u81f3\u904d\u5386\u5b8c\u6574\u4e2a\u6570\u5217\u3002\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\u7684\u6838\u5fc3\u4f18\u52bf\u662f\u5176\u8fd0\u884c\u65f6\u95f4\u590d\u6742\u5ea6\u8f83\u4f4e\uff0c\u9002\u5408\u7528\u4e8e\u5feb\u901f\u7b5b\u9009\u8f83\u5927\u8303\u56f4\u5185\u7684\u8d28\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u66b4\u529b\u6cd5<\/h3>\n<\/p>\n<p><p>\u66b4\u529b\u6cd5\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u5b83\u901a\u8fc7\u68c0\u67e5\u4ece2\u5230n-1\u7684\u6240\u6709\u6574\u6570\u662f\u5426\u80fd\u591f\u6574\u9664n\u6765\u5224\u65adn\u662f\u5426\u4e3a\u8d28\u6570\u3002\u5c3d\u7ba1\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\uff0c\u4f46\u5f53\u9762\u5bf9\u5927\u91cf\u6570\u636e\u65f6\uff0c\u6548\u7387\u8f83\u4f4e\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5b9e\u73b0\u6b65\u9aa4\uff1a<\/strong> \u9996\u5148\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u904d\u53862\u5230n-1\u7684\u6240\u6709\u6570\uff0c\u4f7f\u7528\u6a21\u8fd0\u7b97\u68c0\u67e5\u662f\u5426\u80fd\u6574\u9664n\u3002\u5982\u679c\u6240\u6709\u7684\u6570\u90fd\u4e0d\u80fd\u6574\u9664n\uff0c\u5219n\u662f\u8d28\u6570\u3002<\/li>\n<li><strong>\u6027\u80fd\u5206\u6790\uff1a<\/strong> \u7531\u4e8e\u9700\u8981\u5bf9\u6bcf\u4e2a\u6570\u90fd\u8fdb\u884c\u68c0\u67e5\uff0c\u6240\u4ee5\u5f53n\u975e\u5e38\u5927\u65f6\uff0c\u8fd9\u79cd\u65b9\u6cd5\u7684\u8ba1\u7b97\u91cf\u975e\u5e38\u5927\uff0c\u6548\u7387\u4f4e\u4e0b\u3002<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001\u4f18\u5316\u7684\u8fed\u4ee3\u6cd5<\/h3>\n<\/p>\n<p><p>\u4f18\u5316\u7684\u8fed\u4ee3\u6cd5\u57fa\u4e8e\u8fd9\u6837\u4e00\u4e2a\u4e8b\u5b9e\uff1a\u5982\u679cn\u4e0d\u662f\u8d28\u6570\uff0c\u90a3\u4e48n\u6709\u4e00\u4e2a\u56e0\u5b50d\uff0c\u6ee1\u8db31 &lt; d &lt; sqrt(n)\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ea\u9700\u8981\u68c0\u67e5\u5230sqrt(n)\u5373\u53ef\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5de5\u4f5c\u539f\u7406\uff1a<\/strong> \u5bf9\u6bcf\u4e2a\u6570n\uff0c\u53ea\u9700\u8981\u68c0\u67e52\u5230sqrt(n)\u4e4b\u95f4\u7684\u6570\u662f\u5426\u80fd\u6574\u9664n\u3002\u8fd9\u6837\u5927\u5927\u51cf\u5c11\u4e86\u68c0\u67e5\u7684\u8303\u56f4\u3002<\/li>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong> \u4e0e\u66b4\u529b\u6cd5\u76f8\u6bd4\uff0c\u4f18\u5316\u7684\u8fed\u4ee3\u6cd5\u5927\u5927\u51cf\u5c11\u4e86\u9700\u8981\u68c0\u67e5\u7684\u6570\u7684\u6570\u91cf\uff0c\u56e0\u6b64\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ul>\n<p><h3>\u4e09\u3001\u7b5b\u9009\u6cd5\uff08\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff09<\/h3>\n<\/p>\n<p><p>\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\u662f\u4e00\u79cd\u6709\u6548\u4e14\u9ad8\u6548\u7684\u7b5b\u9009\u8d28\u6570\u7684\u65b9\u6cd5\u3002\u5b83\u53ef\u4ee5\u5728\u8f83\u77ed\u7684\u65f6\u95f4\u5185\u627e\u51fa\u5c0f\u4e8e\u6216\u7b49\u4e8e\u67d0\u4e2a\u6570n\u7684\u6240\u6709\u8d28\u6570\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5b9e\u73b0\u6b65\u9aa4\uff1a<\/strong> \u521b\u5efa\u4e00\u4e2a\u5217\u8868\uff0c\u6807\u8bb0\u6240\u6709\u7684\u6570\u4e3a\u672a\u68c0\u67e5\uff1b\u7136\u540e\u4ece\u7b2c\u4e00\u4e2a\u8d28\u65702\u5f00\u59cb\uff0c\u6807\u8bb0\u6240\u67092\u7684\u500d\u6570\u4e3a\u975e\u8d28\u6570\uff0c\u7ee7\u7eed\u627e\u5230\u4e0b\u4e00\u4e2a\u672a\u6807\u8bb0\u7684\u6570\uff0c\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u76f4\u5230\u8fbe\u5230n\u3002<\/li>\n<li><strong>\u6838\u5fc3\u4f18\u52bf\uff1a<\/strong> \u8be5\u65b9\u6cd5\u56e0\u5176\u8f83\u4f4e\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u800c\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u8868\u73b0\u51fa\u8272\uff0c\u975e\u5e38\u9002\u7528\u4e8e\u5feb\u901f\u7b5b\u9009\u51fa\u5c0f\u4e8e\u67d0\u4e2a\u5927\u6570n\u7684\u6240\u6709\u8d28\u6570\u3002<\/li>\n<\/ul>\n<p><h3>\u56db\u3001Python\u4ee3\u7801\u793a\u4f8b<\/h3>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u7ed9\u51fa\u4e0a\u8ff0\u65b9\u6cd5\u7684Python\u5b9e\u73b0\u793a\u4f8b\uff0c\u4ee5\u4f9b\u53c2\u8003\u548c\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><h4>\u66b4\u529b\u6cd5\u5b9e\u73b0\uff1a<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">def is_prime_v1(n):<\/p>\n<p>    if n &lt;= 1:<\/p>\n<p>        return False<\/p>\n<p>    for i in range(2, n):<\/p>\n<p>        if n % i == 0:<\/p>\n<p>            return False<\/p>\n<p>    return True<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u4f18\u5316\u7684\u8fed\u4ee3\u6cd5\u5b9e\u73b0\uff1a<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">def is_prime_v2(n):<\/p>\n<p>    if n &lt;= 1:<\/p>\n<p>        return False<\/p>\n<p>    for i in range(2, int(n0.5) + 1):<\/p>\n<p>        if n % i == 0:<\/p>\n<p>            return False<\/p>\n<p>    return True<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u7b5b\u9009\u6cd5\uff08\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff09\u5b9e\u73b0\uff1a<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">def sieve_of_eratosthenes(n):<\/p>\n<p>    prime = [True for i in range(n+1)]<\/p>\n<p>    p = 2<\/p>\n<p>    while (p * p &lt;= n):<\/p>\n<p>        if (prime[p] == True):<\/p>\n<p>            for i in range(p * p, n+1, p):<\/p>\n<p>                prime[i] = False<\/p>\n<p>        p += 1<\/p>\n<p>    prime_list = []<\/p>\n<p>    for p in range(2, n):<\/p>\n<p>        if prime[p]:<\/p>\n<p>            prime_list.append(p)<\/p>\n<p>    return prime_list<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4ee5\u4e0a\u4ee3\u7801\u63d0\u4f9b\u4e86\u5728Python\u4e2d\u8868\u793a\u8d28\u6570\u7684\u51e0\u79cd\u65b9\u6cd5\u3002\u8fd9\u4e9b\u65b9\u6cd5\u4ece\u7b80\u5355\u5230\u590d\u6742\uff0c\u4ece\u66b4\u529b\u5230\u9ad8\u6548\uff0c\u4e3a\u4e0d\u540c\u9700\u8981\u7684\u573a\u666f\u63d0\u4f9b\u4e86\u591a\u79cd\u9009\u62e9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>\u95ee\u98981: Python\u4e2d\u5982\u4f55\u5224\u65ad\u4e00\u4e2a\u6570\u662f\u5426\u4e3a\u8d28\u6570\uff1f<\/strong><\/p>\n<p>\u8d28\u6570\u662f\u6307\u53ea\u80fd\u88ab1\u548c\u81ea\u8eab\u6574\u9664\u7684\u6b63\u6574\u6570\u3002\u8981\u5224\u65ad\u4e00\u4e2a\u6570\u662f\u5426\u4e3a\u8d28\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u4ece2\u5230\u8be5\u6570\u7684\u5e73\u65b9\u6839\u8fdb\u884c\u904d\u5386\uff0c\u5224\u65ad\u662f\u5426\u80fd\u88ab\u6574\u9664\u3002\u5982\u679c\u627e\u5230\u4e00\u4e2a\u80fd\u6574\u9664\u7684\u6570\uff0c\u5219\u8be5\u6570\u4e0d\u662f\u8d28\u6570\uff1b\u5982\u679c\u5faa\u73af\u7ed3\u675f\u90fd\u6ca1\u6709\u627e\u5230\u80fd\u6574\u9664\u7684\u6570\uff0c\u5219\u8be5\u6570\u662f\u8d28\u6570\u3002<\/p>\n<p><strong>\u95ee\u98982: \u5982\u4f55\u4f7f\u7528Python\u4ee3\u7801\u751f\u6210\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u6240\u6709\u8d28\u6570\uff1f<\/strong><\/p>\n<p>\u8981\u751f\u6210\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u6240\u6709\u8d28\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u53cc\u91cd\u5faa\u73af\u3002\u5916\u5c42\u5faa\u73af\u904d\u5386\u6307\u5b9a\u8303\u56f4\u5185\u7684\u6570\uff0c\u5185\u5c42\u5faa\u73af\u5224\u65ad\u6bcf\u4e2a\u6570\u662f\u5426\u4e3a\u8d28\u6570\u3002\u5982\u679c\u662f\u8d28\u6570\uff0c\u5219\u5c06\u5176\u52a0\u5165\u4e00\u4e2a\u5217\u8868\u6216\u6253\u5370\u51fa\u6765\u3002<\/p>\n<p><strong>\u95ee\u98983: \u5728Python\u4e2d\u5982\u4f55\u4f18\u5316\u5224\u65ad\u8d28\u6570\u7684\u7b97\u6cd5\uff1f<\/strong><\/p>\n<p>\u5224\u65ad\u8d28\u6570\u7684\u7b97\u6cd5\u53ef\u4ee5\u8fdb\u884c\u4f18\u5316\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u904d\u5386\u6b21\u6570\u3002\u5e38\u7528\u7684\u4f18\u5316\u624b\u6bb5\u6709\u4f7f\u7528\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff08Sieve of Eratosthenes\uff09\u548c\u4f18\u5316\u7684\u6839\u53f7\u7b97\u6cd5\u3002\u4f7f\u7528\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\u53ef\u4ee5\u5148\u751f\u6210\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u6240\u6709\u8d28\u6570\uff0c\u7136\u540e\u901a\u8fc7\u5224\u65ad\u662f\u5426\u80fd\u88ab\u8fd9\u4e9b\u8d28\u6570\u6574\u9664\u6765\u5224\u65ad\u4e00\u4e2a\u6570\u662f\u5426\u4e3a\u8d28\u6570\u3002\u4f18\u5316\u7684\u6839\u53f7\u7b97\u6cd5\u5219\u53ef\u4ee5\u51cf\u5c11\u5185\u5c42\u5faa\u73af\u904d\u5386\u7684\u6b21\u6570\uff0c\u53ea\u9700\u8981\u904d\u5386\u5230\u8be5\u6570\u7684\u5e73\u65b9\u6839\u5373\u53ef\u5224\u65ad\u662f\u5426\u4e3a\u8d28\u6570\u3002\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\u90fd\u80fd\u63d0\u9ad8\u7b97\u6cd5\u7684\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u8868\u793a\u8d28\u6570\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u4e00\u6bb5\u4ee3\u7801\u6765\u5b9e\u73b0\uff0c\u6838\u5fc3\u601d\u8def\u4e3b\u8981\u5305\u62ec\uff1a\u7b5b\u9009\u6cd5\uff08\u4f8b\u5982\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff09\u3001\u66b4\u529b\u6cd5 [&hellip;]","protected":false},"author":3,"featured_media":175237,"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\/175224"}],"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=175224"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/175224\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/175237"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=175224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=175224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=175224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}