{"id":204716,"date":"2025-05-29T15:13:40","date_gmt":"2025-05-29T07:13:40","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204716\/"},"modified":"2025-05-29T15:13:40","modified_gmt":"2025-05-29T07:13:40","slug":"python-format-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e5%8f%98%e9%87%8f%e8%a1%a8%e8%be%be%e5%bc%8f%e6%8c%87%e5%ae%9a%e5%8f%82%e6%95%b0%e7%bc%96%e5%8f%b7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204716\/","title":{"rendered":"Python format() \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u6307\u5b9a\u53c2\u6570\u7f16\u53f7\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python format() \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u6307\u5b9a\u53c2\u6570\u7f16\u53f7\uff1f <\/h1>\n<p>\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPython format() \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u6307\u5b9a\u53c2\u6570\u7f16\u53f7\uff1f \u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241114\/173156638867359b34aa0ea.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>format()\u4e2d\u7684\u53c2\u6570\u7f16\u53f7<\/strong><\/p>\n<p>\u5728 python \u4e2d\uff0cformat() \u51fd\u6570\u7684\u53c2\u6570\u7f16\u53f7\u53ef\u4ee5\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u6307\u5b9a\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6570\u5b57\u3002\u53d8\u91cf\u8868\u8fbe\u5f0f\u53ef\u4ee5\u5b58\u50a8\u503c\uff0c\u8be5\u503c\u5c06\u89e3\u6790\u4e3a\u8981\u63d2\u5165\u7684\u76ee\u6807\u683c\u5f0f\u5316\u4f4d\u7f6e\u7684\u7d22\u5f15\u3002<\/p>\n<p><strong>\u89e3\u51b3 keyerror \u95ee\u9898<\/strong><\/p>\n<p>\u5728\u7ed9\u5b9a\u7684\u4ee3\u7801\u4e2d\uff0c\u9047\u5230\u4e86 keyerror: &#8216;(n-1)&#8217;\uff0c\u8fd9\u662f\u56e0\u4e3a\u5728 format() \u4e2d\u4f7f\u7528\u4e86\u53d8\u91cf\u8868\u8fbe\u5f0f (n-1)\uff0c\u4f46\u6ca1\u6709\u4f20\u9012\u76f8\u5e94\u53c2\u6570\u7684\u5b57\u5178\u6216\u547d\u540d\u5173\u952e\u5b57\u53c2\u6570\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u5c06\u53c2\u6570\u4f5c\u4e3a\u5173\u952e\u5b57\u53c2\u6570\u4f20\u9012\u7ed9 format() \u51fd\u6570\uff1a<\/p>\n<pre>n = eval(input('\u8bf7\u8f93\u5165\u4e00\u4e2a1~7\u6574\u6570\uff1a'))\nif n in range(1, 8):\n    print('\u661f\u671f{day}'.format(day=str(n - 1)))\nelse:\n    print('\u8f93\u5165\u7684\u6574\u6570\u4e0d\u6ee1\u8db3\u8981\u6c42\uff0c\u8bf7\u91cd\u65b0\u8f93\u5165\u3002')<\/pre>\n<p><strong>\u5176\u4ed6\u7528\u6cd5\uff1a<\/strong><\/p>\n<p>\u8fd9\u79cd\u4f7f\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u7684\u65b9\u5f0f\u4e3a format() \u51fd\u6570\u63d0\u4f9b\u4e86\u66f4\u591a\u7075\u6d3b\u6027\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u52a8\u6001\u786e\u5b9a\u8981\u63d2\u5165\u7684\u683c\u5f0f\u5316\u4f4d\u7f6e\uff0c\u6216\u8005\u6839\u636e\u7528\u6237\u8f93\u5165\u9009\u62e9\u4e0d\u540c\u7684\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u53d8\u91cf\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\u7684\u53d8\u91cf\u5fc5\u987b\u662f\u5df2\u5b9a\u4e49\u7684\uff0c\u5426\u5219\u4f1a\u5f15\u53d1\u9519\u8bef\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aPython format() \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u53d8\u91cf\u8868\u8fbe\u5f0f\u6307\u5b9a\u53c2\u6570\u7f16\u53f7\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>Python format() &#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-204716","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204716","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=204716"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204716\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}