{"id":204160,"date":"2025-05-29T12:27:48","date_gmt":"2025-05-29T04:27:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204160\/"},"modified":"2025-05-29T12:27:48","modified_gmt":"2025-05-29T04:27:48","slug":"%e5%a6%82%e4%bd%95%e6%a0%b9%e6%8d%ae%e7%ac%ac%e4%b8%80%e4%b8%aa%e5%85%83%e7%b4%a0%e5%af%b9%e5%88%97%e8%a1%a8-a-b-%e8%bf%9b%e8%a1%8c%e6%8e%92%e5%ba%8f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204160\/","title":{"rendered":"\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868 (a, b) \u8fdb\u884c\u6392\u5e8f\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868 (a, b) \u8fdb\u884c\u6392\u5e8f\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868 (a, b) \u8fdb\u884c\u6392\u5e8f\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241030\/17302750786721e706de86e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868(a, b)\u8fdb\u884c\u6392\u5e8f\uff1f<\/strong><\/p>\n<p>\u4e3a\u4e86\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 Python \u4e2d\u7684 sorted() \u51fd\u6570\u3002\u8be5\u51fd\u6570\u5c06\u5217\u8868\u4f5c\u4e3a\u5176\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u5e76\u5c06\u6392\u5e8f\u51fd\u6570\u4f5c\u4e3a\u5176\u7b2c\u4e8c\u4e2a\u53c2\u6570\u3002<\/p>\n<p>\u5bf9\u4e8e\u672c\u95ee\u9898\uff0c\u76ee\u6807\u662f\u6839\u636e\u5217\u8868\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u5373 a\uff09\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\u3002\u4e3a\u6b64\uff0c\u53ef\u4ee5\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u6392\u5e8f\u51fd\u6570\uff1a<\/p>\n<p>&lt;pre&gt;<br \/>sorted(aalist, key=lambda _: _[0])<br \/>&lt;\/pre&gt;<\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><strong>lambda _: _[0]<\/strong> \u662f\u4e00\u4e2a lambda \u8868\u8fbe\u5f0f\uff0c\u5b83\u8fd4\u56de\u5217\u8868\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u5373 a\uff09\u3002<\/li>\n<li><strong>key=<\/strong> \u9009\u9879\u6307\u5b9a\u6392\u5e8f\u51fd\u6570\uff0c\u5728\u672c\u4f8b\u4e2d\u4e3a lambda \u8868\u8fbe\u5f0f\u3002<\/li>\n<\/ul>\n<p>\u8be5\u51fd\u6570\u5c06\u6839\u636e a \u7684\u503c\u5bf9\u5217\u8868\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\uff0c\u4ece\u800c\u751f\u6210\u6309\u987a\u5e8f\u6392\u5217\u7684\u5217\u8868\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868 (a, b) \u8fdb\u884c\u6392\u5e8f\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u6839\u636e\u7b2c\u4e00\u4e2a\u5143\u7d20\u5bf9\u5217\u8868 (a,&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204160","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204160"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204160\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}