{"id":1165291,"date":"2025-01-15T15:18:35","date_gmt":"2025-01-15T07:18:35","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1165291.html"},"modified":"2025-01-15T15:18:38","modified_gmt":"2025-01-15T07:18:38","slug":"python%e5%a6%82%e4%bd%95%e6%8e%a7%e5%88%b6%e5%be%aa%e7%8e%af%e7%9a%84%e5%b1%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1165291.html","title":{"rendered":"python\u5982\u4f55\u63a7\u5236\u5faa\u73af\u7684\u5c42\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25205708\/014d0285-709e-4c7f-a40a-ca338ad8b347.webp\" alt=\"python\u5982\u4f55\u63a7\u5236\u5faa\u73af\u7684\u5c42\u6570\" \/><\/p>\n<p><p> Python\u63a7\u5236\u5faa\u73af\u5c42\u6570\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec<strong>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u3001\u51fd\u6570\u9012\u5f52\u3001\u751f\u6210\u5668<\/strong>\u7b49\u3002\u5176\u4e2d\uff0c\u5d4c\u5957\u5faa\u73af\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5d4c\u5957\u5faa\u73af\u7684\u4f7f\u7528\uff0c\u5e76\u5ef6\u5c55\u5230\u5176\u4ed6\u63a7\u5236\u5faa\u73af\u5c42\u6570\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><h3>\u5d4c\u5957\u5faa\u73af<\/h3>\n<\/p>\n<p><p>\u5d4c\u5957\u5faa\u73af\u662f\u6307\u5728\u4e00\u4e2a\u5faa\u73af\u4f53\u5185\u518d\u5d4c\u5957\u53e6\u4e00\u4e2a\u5faa\u73af\uff0c\u5e38\u7528\u4e8e\u5904\u7406\u591a\u7ef4\u6570\u636e\u6216\u590d\u6742\u7684\u5faa\u73af\u903b\u8f91\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6765\u63a7\u5236\u5faa\u73af\u5c42\u6570\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">for i in range(3):<\/p>\n<p>    for j in range(2):<\/p>\n<p>        print(f&quot;i={i}, j={j}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5916\u5c42\u5faa\u73af\u63a7\u5236\u53d8\u91cf<code>i<\/code>\uff0c\u5185\u5c42\u5faa\u73af\u63a7\u5236\u53d8\u91cf<code>j<\/code>\u3002\u6bcf\u6b21\u5916\u5c42\u5faa\u73af\u6267\u884c\u4e00\u6b21\uff0c\u5185\u5c42\u5faa\u73af\u5c06\u6267\u884c\u5176\u6240\u6709\u7684\u5faa\u73af\u6b21\u6570\u3002<\/p>\n<\/p>\n<p><h4>\u63a7\u5236\u5d4c\u5957\u5c42\u6570<\/h4>\n<\/p>\n<p><p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u6216\u51cf\u5c11\u5d4c\u5957\u5c42\u6570\u6765\u63a7\u5236\u5faa\u73af\u7684\u6df1\u5ea6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">for i in range(2):<\/p>\n<p>    for j in range(3):<\/p>\n<p>        for k in range(4):<\/p>\n<p>            print(f&quot;i={i}, j={j}, k={k}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u4e2d\uff0c\u6bcf\u6b21\u5916\u5c42\u5faa\u73af\u6267\u884c\u4e00\u6b21\uff0c\u5185\u5c42\u5faa\u73af\u5c06\u6267\u884c\u5176\u6240\u6709\u7684\u5faa\u73af\u6b21\u6570\uff0c\u800c\u6700\u5185\u5c42\u7684\u5faa\u73af\u5c06\u5728\u5185\u5c42\u5faa\u73af\u7684\u57fa\u7840\u4e0a\u6267\u884c\u5176\u6240\u6709\u7684\u5faa\u73af\u6b21\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u51fd\u6570\u9012\u5f52<\/h3>\n<\/p>\n<p><p>\u9012\u5f52\u662f\u4e00\u79cd\u5728\u51fd\u6570\u4e2d\u8c03\u7528\u81ea\u8eab\u7684\u65b9\u6cd5\u3002\u9012\u5f52\u53ef\u4ee5\u66ff\u4ee3\u5d4c\u5957\u5faa\u73af\u6765\u5904\u7406\u67d0\u4e9b\u95ee\u9898\uff0c\u7279\u522b\u662f\u6811\u7ed3\u6784\u6216\u56fe\u7ed3\u6784\u7684\u904d\u5386\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u9012\u5f52\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def recursive_function(n, depth=0):<\/p>\n<p>    if n &lt;= 0:<\/p>\n<p>        return<\/p>\n<p>    print(f&quot;Depth={depth}, n={n}&quot;)<\/p>\n<p>    recursive_function(n-1, depth+1)<\/p>\n<p>recursive_function(5)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>recursive_function<\/code>\u51fd\u6570\u5728\u6bcf\u6b21\u8c03\u7528\u65f6\u90fd\u4f1a\u51cf\u5c11<code>n<\/code>\u7684\u503c\u5e76\u589e\u52a0\u9012\u5f52\u6df1\u5ea6<code>depth<\/code>\uff0c\u76f4\u5230<code>n<\/code>\u5c0f\u4e8e\u7b49\u4e8e0\u4e3a\u6b62\u3002<\/p>\n<\/p>\n<p><h3>\u751f\u6210\u5668<\/h3>\n<\/p>\n<p><p>\u751f\u6210\u5668\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u8fed\u4ee3\u5668\uff0c\u7528\u4e8e\u5728\u5faa\u73af\u4e2d\u52a8\u6001\u751f\u6210\u6570\u636e\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u751f\u6210\u6240\u6709\u6570\u636e\u3002\u751f\u6210\u5668\u53ef\u4ee5\u5e2e\u52a9\u63a7\u5236\u5faa\u73af\u5c42\u6570\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5927\u6570\u636e\u96c6\u65f6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u751f\u6210\u5668\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def my_generator(n):<\/p>\n<p>    for i in range(n):<\/p>\n<p>        yield i<\/p>\n<p>gen = my_generator(5)<\/p>\n<p>for value in gen:<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u751f\u6210\u5668\u51fd\u6570<code>my_generator<\/code>\u4f7f\u7528<code>yield<\/code>\u5173\u952e\u5b57\u9010\u4e2a\u8fd4\u56de\u6570\u636e\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u5faa\u73af\u4e2d\u4f7f\u7528\u751f\u6210\u5668\u6765\u63a7\u5236\u6570\u636e\u7684\u751f\u6210\u548c\u5904\u7406\u3002<\/p>\n<\/p>\n<p><h3>\u5176\u4ed6\u65b9\u6cd5<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u63a7\u5236\u5faa\u73af\u5c42\u6570\uff0c\u4f8b\u5982<strong>\u5217\u8868\u63a8\u5bfc\u5f0f\u3001itertools\u6a21\u5757<\/strong>\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><h4>\u5217\u8868\u63a8\u5bfc\u5f0f<\/h4>\n<\/p>\n<p><p>\u5217\u8868\u63a8\u5bfc\u5f0f\u53ef\u4ee5\u7b80\u5316\u5d4c\u5957\u5faa\u73af\u7684\u4ee3\u7801\u7ed3\u6784\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u4e8c\u7ef4\u6570\u7ec4\u65f6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">matrix = [[i * j for j in range(3)] for i in range(2)]<\/p>\n<p>print(matrix)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>itertools\u6a21\u5757<\/h4>\n<\/p>\n<p><p><code>itertools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u6709\u7528\u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u7684\u5faa\u73af\u903b\u8f91\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import itertools<\/p>\n<p>for i, j in itertools.product(range(2), range(3)):<\/p>\n<p>    print(f&quot;i={i}, j={j}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f7f\u7528<code>itertools.product<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u751f\u6210\u6240\u6709\u53ef\u80fd\u7684\u7ec4\u5408\uff0c\u4ece\u800c\u66ff\u4ee3\u5d4c\u5957\u5faa\u73af\u3002<\/p>\n<\/p>\n<p><h3>\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u591a\u79cd\u63a7\u5236\u5faa\u73af\u5c42\u6570\u7684\u65b9\u6cd5\uff0c\u5305\u62ec<strong>\u5d4c\u5957\u5faa\u73af\u3001\u51fd\u6570\u9012\u5f52\u3001\u751f\u6210\u5668\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u3001itertools\u6a21\u5757<\/strong>\u7b49\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002\u5d4c\u5957\u5faa\u73af\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u4f46\u5728\u5904\u7406\u590d\u6742\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u9012\u5f52\u6216\u751f\u6210\u5668\u3002\u901a\u8fc7\u5408\u7406\u63a7\u5236\u5faa\u73af\u5c42\u6570\uff0c\u80fd\u591f\u66f4\u597d\u5730\u7ba1\u7406\u548c\u4f18\u5316\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8bbe\u7f6e\u5faa\u73af\u7684\u6700\u5927\u5c42\u6570\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u63a7\u5236\u5faa\u73af\u7684\u5c42\u6570\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6765\u5b9e\u73b0\u3002\u6bcf\u4e2a\u5faa\u73af\u90fd\u53ef\u4ee5\u9650\u5236\u5176\u5185\u90e8\u7684\u6267\u884c\u6b21\u6570\u3002\u4f60\u53ef\u4ee5\u5229\u7528\u6761\u4ef6\u8bed\u53e5\u6216\u8ba1\u6570\u5668\u6765\u63a7\u5236\u5faa\u73af\u7684\u6df1\u5ea6\uff0c\u786e\u4fdd\u4e0d\u4f1a\u8d85\u51fa\u9884\u8bbe\u7684\u5c42\u6570\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u914d\u5408\u4e00\u4e2a\u8ba1\u6570\u5668\uff0c\u6765\u9650\u5236\u5faa\u73af\u7684\u5c42\u6570\u3002<\/p>\n<p><strong>\u5d4c\u5957\u5faa\u73af\u4f1a\u5f71\u54cd\u6027\u80fd\u5417\uff1f<\/strong><br \/>\u5d4c\u5957\u5faa\u73af\u7684\u6027\u80fd\u786e\u5b9e\u4f1a\u53d7\u5230\u5c42\u6570\u7684\u5f71\u54cd\u3002\u968f\u7740\u5faa\u73af\u5c42\u6570\u7684\u589e\u52a0\uff0c\u8ba1\u7b97\u590d\u6742\u5ea6\u4f1a\u5448\u6307\u6570\u7ea7\u589e\u957f\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u6267\u884c\u65f6\u95f4\u663e\u8457\u5ef6\u957f\u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u5efa\u8bae\u4f18\u5316\u5faa\u73af\u7684\u903b\u8f91\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5d4c\u5957\uff0c\u6216\u8005\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u5982\u5217\u8868\u63a8\u5bfc\u5f0f\u6216\u751f\u6210\u5668\u6765\u66ff\u4ee3\u5d4c\u5957\u5faa\u73af\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u591a\u5c42\u5faa\u73af\u7684\u72b6\u6001\uff1f<\/strong><br \/>\u7ba1\u7406\u591a\u5c42\u5faa\u73af\u7684\u72b6\u6001\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6570\u636e\u7ed3\u6784\u5982\u5217\u8868\u3001\u5b57\u5178\u6216\u81ea\u5b9a\u4e49\u5bf9\u8c61\u6765\u4fdd\u5b58\u6bcf\u5c42\u7684\u72b6\u6001\u4fe1\u606f\u3002\u4f7f\u7528\u5408\u9002\u7684\u6807\u5fd7\u53d8\u91cf\u6216\u6761\u4ef6\u5224\u65ad\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u8df3\u51fa\u5faa\u73af\u6216\u8c03\u6574\u5faa\u73af\u7684\u884c\u4e3a\u3002\u6b64\u5916\uff0c\u5229\u7528\u51fd\u6570\u5c06\u5faa\u73af\u903b\u8f91\u5c01\u88c5\u8d77\u6765\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u4ece\u800c\u66f4\u597d\u5730\u7ba1\u7406\u591a\u5c42\u5faa\u73af\u7684\u72b6\u6001\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u63a7\u5236\u5faa\u73af\u5c42\u6570\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u3001\u51fd\u6570\u9012\u5f52\u3001\u751f\u6210\u5668\u7b49\u3002\u5176\u4e2d\uff0c\u5d4c\u5957\u5faa\u73af\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u4e0b\u9762 [&hellip;]","protected":false},"author":3,"featured_media":1165295,"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\/1165291"}],"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=1165291"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165291\/revisions"}],"predecessor-version":[{"id":1165297,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165291\/revisions\/1165297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1165295"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1165291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1165291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1165291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}