{"id":964071,"date":"2024-12-27T04:24:48","date_gmt":"2024-12-26T20:24:48","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/964071.html"},"modified":"2024-12-27T04:24:51","modified_gmt":"2024-12-26T20:24:51","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e5%be%aa%e7%8e%af%e7%bb%93%e6%9d%9f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/964071.html","title":{"rendered":"python\u5982\u4f55\u5224\u65ad\u5faa\u73af\u7ed3\u675f"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24181048\/59a004e0-6c90-490d-ba3c-672dd32f23d4.webp\" alt=\"python\u5982\u4f55\u5224\u65ad\u5faa\u73af\u7ed3\u675f\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u5224\u65ad\u5faa\u73af\u7ed3\u675f\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5e38\u89c1\u7684\u5305\u62ec\uff1a\u4f7f\u7528\u5faa\u73af\u6761\u4ef6\u3001break\u8bed\u53e5\u3001\u8fed\u4ee3\u5668\u7684StopIteration\u5f02\u5e38\u3001\u4ee5\u53ca\u6761\u4ef6\u6807\u5fd7\u3002<\/strong>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u5faa\u73af\u6761\u4ef6\u548cbreak\u8bed\u53e5\u662f\u6700\u76f4\u63a5\u548c\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u4f7f\u7528\u5faa\u73af\u6761\u4ef6\u65f6\uff0c\u53ef\u4ee5\u5728\u5faa\u73af\u5f00\u59cb\u4e4b\u524d\u8bbe\u7f6e\u4e00\u4e2a\u6761\u4ef6\uff0c\u5f53\u6761\u4ef6\u4e0d\u518d\u6ee1\u8db3\u65f6\uff0c\u5faa\u73af\u81ea\u52a8\u7ed3\u675f\u3002\u4f7f\u7528break\u8bed\u53e5\u65f6\uff0c\u53ef\u4ee5\u5728\u5faa\u73af\u4f53\u4e2d\u6839\u636e\u67d0\u4e2a\u6761\u4ef6\u4e3b\u52a8\u8df3\u51fa\u5faa\u73af\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u4e2awhile\u5faa\u73af\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8\u63a7\u5236\u53d8\u91cf\u7684\u503c\u6765\u7ed3\u675f\u5faa\u73af\uff1b\u5728\u4e00\u4e2afor\u5faa\u73af\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7break\u8bed\u53e5\u5728\u6ee1\u8db3\u6761\u4ef6\u65f6\u7acb\u5373\u9000\u51fa\u5faa\u73af\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u5faa\u73af\u6761\u4ef6<\/p>\n<\/p>\n<p><p>\u5faa\u73af\u6761\u4ef6\u662f\u5224\u65ad\u5faa\u73af\u7ed3\u675f\u7684\u6700\u57fa\u672c\u65b9\u6cd5\u3002\u65e0\u8bba\u662ffor\u5faa\u73af\u8fd8\u662fwhile\u5faa\u73af\uff0c\u90fd\u662f\u57fa\u4e8e\u4e00\u4e2a\u6761\u4ef6\u6765\u63a7\u5236\u5faa\u73af\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528while\u5faa\u73af<\/strong><\/p>\n<\/p>\n<p><p>while\u5faa\u73af\u4f9d\u8d56\u4e8e\u4e00\u4e2a\u5e03\u5c14\u6761\u4ef6\u6765\u51b3\u5b9a\u662f\u5426\u7ee7\u7eed\u5faa\u73af\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">count = 0<\/p>\n<p>while count &lt; 5:<\/p>\n<p>    print(count)<\/p>\n<p>    count += 1<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5faa\u73af\u4f1a\u6301\u7eed\u6267\u884c\uff0c\u76f4\u5230count\u4e0d\u518d\u5c0f\u4e8e5\u3002\u5f53count\u7b49\u4e8e5\u65f6\uff0c\u6761\u4ef6<code>count &lt; 5<\/code>\u4e0d\u518d\u4e3a\u771f\uff0c\u5faa\u73af\u81ea\u52a8\u7ed3\u675f\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4f7f\u7528for\u5faa\u73af<\/strong><\/p>\n<\/p>\n<p><p>for\u5faa\u73af\u901a\u5e38\u7528\u4e8e\u904d\u5386\u5e8f\u5217\uff08\u5982\u5217\u8868\u3001\u5b57\u7b26\u4e32\u3001\u5b57\u5178\u7b49\uff09\uff0c\u5b83\u4f1a\u5728\u5e8f\u5217\u904d\u5386\u5b8c\u6bd5\u540e\u81ea\u52a8\u7ed3\u675f\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers = [1, 2, 3, 4, 5]<\/p>\n<p>for number in numbers:<\/p>\n<p>    print(number)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5f53numbers\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u90fd\u88ab\u904d\u5386\u540e\uff0c\u5faa\u73af\u5c31\u4f1a\u81ea\u52a8\u7ed3\u675f\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e8c\u3001break\u8bed\u53e5<\/p>\n<\/p>\n<p><p>break\u8bed\u53e5\u662f\u7528\u4e8e\u7acb\u5373\u7ec8\u6b62\u5faa\u73af\uff0c\u65e0\u8bba\u5faa\u73af\u6761\u4ef6\u662f\u5426\u4ecd\u7136\u4e3a\u771f\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5728\u5faa\u73af\u4e2d\u95f4\u6839\u636e\u67d0\u4e2a\u6761\u4ef6\u63d0\u524d\u9000\u51fa\u5faa\u73af\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u5728while\u5faa\u73af\u4e2d\u4f7f\u7528break<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">count = 0<\/p>\n<p>while True:<\/p>\n<p>    print(count)<\/p>\n<p>    count += 1<\/p>\n<p>    if count == 5:<\/p>\n<p>        break<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u867d\u7136while\u5faa\u73af\u7684\u6761\u4ef6\u59cb\u7ec8\u4e3aTrue\uff0c\u4f46\u5f53count\u7b49\u4e8e5\u65f6\uff0cbreak\u8bed\u53e5\u4f1a\u7acb\u5373\u7ec8\u6b62\u5faa\u73af\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5728for\u5faa\u73af\u4e2d\u4f7f\u7528break<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers = [1, 2, 3, 4, 5]<\/p>\n<p>for number in numbers:<\/p>\n<p>    if number == 3:<\/p>\n<p>        break<\/p>\n<p>    print(number)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5f53number\u7b49\u4e8e3\u65f6\uff0cbreak\u8bed\u53e5\u4f1a\u7ec8\u6b62\u5faa\u73af\u3002\u56e0\u6b64\uff0c\u53ea\u4f1a\u6253\u53701\u548c2\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e09\u3001\u8fed\u4ee3\u5668\u7684StopIteration\u5f02\u5e38<\/p>\n<\/p>\n<p><p>\u5728\u4f7f\u7528\u8fed\u4ee3\u5668\u65f6\uff0c\u5faa\u73af\u901a\u5e38\u662f\u901a\u8fc7\u6355\u83b7StopIteration\u5f02\u5e38\u6765\u7ed3\u675f\u7684\u3002\u8fd9\u662ffor\u5faa\u73af\u5728\u5e95\u5c42\u5b9e\u73b0\u7684\u4e00\u90e8\u5206\uff0c\u901a\u5e38\u4e0d\u9700\u8981\u624b\u52a8\u5904\u7406\u8fd9\u4e2a\u5f02\u5e38\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u8fed\u4ee3\u5668\u624b\u52a8\u5904\u7406StopIteration<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers = iter([1, 2, 3, 4, 5])<\/p>\n<p>while True:<\/p>\n<p>    try:<\/p>\n<p>        number = next(numbers)<\/p>\n<p>        print(number)<\/p>\n<p>    except StopIteration:<\/p>\n<p>        break<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u624b\u52a8\u521b\u5efa\u4e86\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u5e76\u5728\u5faa\u73af\u4e2d\u4f7f\u7528try-except\u7ed3\u6784\u6355\u83b7StopIteration\u5f02\u5e38\uff0c\u4ee5\u7ec8\u6b62\u5faa\u73af\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u56db\u3001\u6761\u4ef6\u6807\u5fd7<\/p>\n<\/p>\n<p><p>\u6761\u4ef6\u6807\u5fd7\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u7ed3\u5408\u5176\u4ed6\u903b\u8f91\u6765\u63a7\u5236\u5faa\u73af\u7684\u7ed3\u675f\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u6761\u4ef6\u6807\u5fd7\u63a7\u5236\u5faa\u73af<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">running = True<\/p>\n<p>count = 0<\/p>\n<p>while running:<\/p>\n<p>    print(count)<\/p>\n<p>    count += 1<\/p>\n<p>    if count == 5:<\/p>\n<p>        running = False<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0crunning\u662f\u4e00\u4e2a\u6761\u4ef6\u6807\u5fd7\u53d8\u91cf\u3002\u5f53running\u53d8\u4e3aFalse\u65f6\uff0c\u5faa\u73af\u7ed3\u675f\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u7ed3\u5408\u8f93\u5165\u548c\u6761\u4ef6\u6807\u5fd7<\/strong><\/p>\n<\/p>\n<p><p>\u6709\u65f6\uff0c\u5faa\u73af\u9700\u8981\u6839\u636e\u7528\u6237\u8f93\u5165\u6216\u5176\u4ed6\u5916\u90e8\u6761\u4ef6\u6765\u7ed3\u675f\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">running = True<\/p>\n<p>while running:<\/p>\n<p>    user_input = input(&quot;Enter &#39;stop&#39; to end the loop: &quot;)<\/p>\n<p>    if user_input.lower() == &#39;stop&#39;:<\/p>\n<p>        running = False<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u4e2a\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u6839\u636e\u7528\u6237\u8f93\u5165\u6765\u7ec8\u6b62\u5faa\u73af\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e94\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\u5224\u65ad\u5faa\u73af\u7ed3\u675f\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u5177\u4f53\u9009\u62e9\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u3002<strong>\u5faa\u73af\u6761\u4ef6\u548cbreak\u8bed\u53e5\u662f\u6700\u5e38\u7528\u7684\u57fa\u672c\u65b9\u6cd5<\/strong>\uff0c\u5b83\u4eec\u7b80\u5355\u76f4\u63a5\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u3002\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u9700\u6c42\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u6761\u4ef6\u6807\u5fd7\u6216\u7ed3\u5408\u5f02\u5e38\u5904\u7406\u6765\u5b9e\u73b0\u3002\u540c\u65f6\uff0c\u5728\u7f16\u5199\u5faa\u73af\u65f6\uff0c\u5e94\u6ce8\u610f\u907f\u514d\u6b7b\u5faa\u73af\u7684\u51fa\u73b0\uff0c\u786e\u4fdd\u5faa\u73af\u6761\u4ef6\u6216break\u8bed\u53e5\u80fd\u591f\u5728\u5408\u7406\u7684\u6761\u4ef6\u4e0b\u89e6\u53d1\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7f16\u5199\u51fa\u9ad8\u6548\u4e14\u53ef\u7ef4\u62a4\u7684\u5faa\u73af\u7ed3\u6784\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u6709\u6548\u76d1\u63a7\u5faa\u73af\u7684\u6761\u4ef6\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6761\u4ef6\u8bed\u53e5\u6765\u76d1\u63a7\u5faa\u73af\u7684\u7ed3\u675f\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u642d\u914d\u5e03\u5c14\u53d8\u91cf\u6765\u63a7\u5236\u4f55\u65f6\u7ed3\u675f\u5faa\u73af\u3002\u901a\u8fc7\u8bbe\u5b9a\u4e00\u4e2a\u7279\u5b9a\u7684\u6761\u4ef6\uff0c\u5f53\u6761\u4ef6\u4e0d\u518d\u6ee1\u8db3\u65f6\uff0c\u5faa\u73af\u5c06\u81ea\u52a8\u7ed3\u675f\u3002\u8fd9\u79cd\u65b9\u5f0f\u7279\u522b\u9002\u5408\u4e8e\u9700\u8981\u5728\u5faa\u73af\u4e2d\u4e0d\u65ad\u68c0\u67e5\u72b6\u6001\u7684\u573a\u666f\u3002<\/p>\n<p><strong>Python\u4e2d\u6709\u6ca1\u6709\u5185\u7f6e\u65b9\u6cd5\u53ef\u4ee5\u5f3a\u5236\u7ed3\u675f\u5faa\u73af\uff1f<\/strong><br \/>Python\u63d0\u4f9b\u4e86<code>break<\/code>\u8bed\u53e5\uff0c\u5141\u8bb8\u7528\u6237\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u5f3a\u5236\u9000\u51fa\u5faa\u73af\u3002\u5f53\u7a0b\u5e8f\u6267\u884c\u5230<code>break<\/code>\u8bed\u53e5\u65f6\uff0c\u5faa\u73af\u4f1a\u7acb\u5373\u505c\u6b62\u3002\u8fd9\u5728\u9700\u8981\u6839\u636e\u67d0\u4e9b\u52a8\u6001\u6761\u4ef6\u63d0\u524d\u7ed3\u675f\u5faa\u73af\u7684\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u6bd4\u5982\u627e\u5230\u76ee\u6807\u503c\u65f6\u3002<\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528\u8ba1\u6570\u5668\u6765\u63a7\u5236\u5faa\u73af\u7684\u7ed3\u675f\uff1f<\/strong><br \/>\u4f7f\u7528\u8ba1\u6570\u5668\u662f\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u8bbe\u7f6e\u4e00\u4e2a\u8ba1\u6570\u5668\u53d8\u91cf\uff0c\u5e76\u5728\u6bcf\u6b21\u5faa\u73af\u65f6\u9012\u589e\u5b83\uff0c\u5f53\u8ba1\u6570\u5668\u8fbe\u5230\u9884\u5b9a\u7684\u503c\u65f6\uff0c\u53ef\u4ee5\u5229\u7528<code>break<\/code>\u8bed\u53e5\u9000\u51fa\u5faa\u73af\u3002\u8fd9\u6837\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u5faa\u73af\u6267\u884c\u7684\u6b21\u6570\uff0c\u5c24\u5176\u5728\u5904\u7406\u56fa\u5b9a\u6b21\u6570\u7684\u4efb\u52a1\u65f6\u975e\u5e38\u6709\u6548\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5224\u65ad\u5faa\u73af\u7ed3\u675f\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5e38\u89c1\u7684\u5305\u62ec\uff1a\u4f7f\u7528\u5faa\u73af\u6761\u4ef6\u3001break\u8bed\u53e5\u3001\u8fed\u4ee3\u5668\u7684StopItera [&hellip;]","protected":false},"author":3,"featured_media":964081,"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\/964071"}],"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=964071"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/964071\/revisions"}],"predecessor-version":[{"id":964088,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/964071\/revisions\/964088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/964081"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=964071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=964071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=964071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}