{"id":204645,"date":"2025-05-29T08:22:25","date_gmt":"2025-05-29T00:22:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204645\/"},"modified":"2025-05-29T08:22:25","modified_gmt":"2025-05-29T00:22:25","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-python-%e5%af%b9-csv-%e6%96%87%e4%bb%b6%e4%b8%ad%e7%9a%84%e6%8c%87%e5%ae%9a%e5%88%97%e6%95%b0%e6%8d%ae%e8%bf%9b%e8%a1%8c%e6%8e%92%e5%ba%8f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204645\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 Python \u5bf9 CSV \u6587\u4ef6\u4e2d\u7684\u6307\u5b9a\u5217\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 Python \u5bf9 CSV \u6587\u4ef6\u4e2d\u7684\u6307\u5b9a\u5217\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff1f<\/h1>\n<p>\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241112\/17313907046732ecf062d10.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5982\u4f55\u6309\u7167\u6307\u5b9a\u6570\u636e\u5bf9 csv \u6587\u4ef6\u4e2d\u7684\u884c\u8fdb\u884c\u6392\u5e8f<\/p>\n<p>\u672c\u6559\u7a0b\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 python \u5bf9 csv \u6587\u4ef6\u4e2d\u6307\u5b9a\u5217\u7684\u6570\u636e\u8fdb\u884c\u6392\u5e8f\u5e76\u5199\u5165\u65b0\u6587\u4ef6\uff0c\u65e0\u9700\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u3002<\/p>\n<p>\u73b0\u6709\u4e00\u4efd\u540d\u4e3a\u201c\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3.csv\u201d\u7684\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre>\u9655\u897f,3954\n\u7518\u8083,2490\n\u9752\u6d77,594\n\u5b81\u590f,725\n\u65b0\u7586,2589<\/pre>\n<p>\u76ee\u6807\u662f\u5c06\u8be5\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u6309\u7167\u4eba\u53e3\u8fdb\u884c\u6392\u5e8f\uff0c\u5e76\u5199\u5165\u4e00\u4efd\u65b0\u6587\u4ef6\u201c\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3(\u6309\u7167\u4eba\u53e3\u6392\u5e8f).csv\u201d\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u8bfb\u53d6\u6587\u4ef6\u5e76\u521b\u5efa\u5217\u8868<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u4f7f\u7528 with open \u8bed\u53e5\u6253\u5f00 csv \u6587\u4ef6\u5e76\u8bfb\u53d6\u5185\u5bb9\u5230\u4e00\u4e2a\u5217\u8868\u4e2d\uff1a<\/p>\n<pre>with open(\"\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3.csv\", mode='r', encoding='u8') as f:\n    data = [line.replace('\\n', '') for line in f.readlines()]<\/pre>\n<p>\u8fd9\u90e8\u5206\u4ee3\u7801\u7528 u8 \u7f16\u7801\u6253\u5f00\u6587\u4ef6\uff0c\u4ee5\u9010\u884c\u8bfb\u53d6\u5185\u5bb9\u3002\u6211\u4eec\u8fd8\u4f7f\u7528 replace(&#8216;n&#8217;, &#8221;) \u6765\u79fb\u9664\u6bcf\u4e00\u884c\u7684\u6362\u884c\u7b26\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6392\u5e8f\u5217\u8868<\/strong><\/p>\n<p>\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 sort \u51fd\u6570\u3002\u6307\u5b9a key \u53c2\u6570\u4ee5\u81ea\u5b9a\u4e49\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n<pre>data.sort(key=lambda row: int(row.split(',')[-1]))<\/pre>\n<p>\u8fd9\u90e8\u5206\u4ee3\u7801\u5c06\u6bcf\u4e00\u884c\u5206\u5272\u4e3a\u4e00\u4e2a\u6570\u7ec4\uff0c\u5e76\u5c06\u6700\u540e\u4e00\u9879\uff08\u5373\u4eba\u53e3\u6570\uff09\u8f6c\u6362\u4e3a\u6574\u6570\u3002\u7136\u540e\u4f7f\u7528\u8fd9\u4e2a\u503c\u4f5c\u4e3a\u6392\u5e8f\u4f9d\u636e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5199\u5165\u65b0\u6587\u4ef6<\/strong><\/p>\n<p>\u6700\u540e\uff0c\u4f7f\u7528 with open \u8bed\u53e5\u6253\u5f00\u4e00\u4e2a\u65b0\u6587\u4ef6\uff0c\u5e76\u5199\u5165\u6392\u5e8f\u540e\u7684\u6570\u636e\uff1a<\/p>\n<pre>with open(\"\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3(\u6309\u7167\u4eba\u53e3\u6392\u5e8f).csv\", mode='w', encoding='u8') as f:\n    f.write('\\n'.join(data))<\/pre>\n<\/li>\n<\/ol>\n<p>\u7ec4\u5408\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>with open(\"\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3.csv\", mode='r', encoding='u8') as f:\n    data = [line.replace('\\n', '') for line in f.readlines()]\ndata.sort(key=lambda row: int(row.split(',')[-1]))\nwith open(\"\u897f\u5317\u5730\u533a\u7701\u7ea7\u884c\u653f\u533a\u4eba\u53e3(\u6309\u7167\u4eba\u53e3\u6392\u5e8f).csv\", mode='w', encoding='u8') as f:\n    f.write('\\n'.join(data))<\/pre>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300a\u5982\u4f55\u4f7f\u7528 Python \u5bf9 CSV \u6587\u4ef6\u4e2d\u7684\u6307\u5b9a\u5217\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 Python \u5bf9 CS&#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-204645","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204645","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=204645"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204645\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}