{"id":189054,"date":"2024-11-12T04:11:19","date_gmt":"2024-11-11T20:11:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189054\/"},"modified":"2024-11-12T04:11:20","modified_gmt":"2024-11-11T20:11:20","slug":"%e6%8f%90%e5%8f%96csv%e6%95%b8%e5%80%bc%e6%95%b8%e6%93%9a-%e5%8f%aa%e6%8f%90%e5%8f%96csv%e6%96%87%e4%bb%b6%e4%b8%ad%e6%95%b8%e5%80%bc%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189054\/","title":{"rendered":"\u63d0\u53d6csv\u6578\u503c\u6578\u64da (\u53ea\u63d0\u53d6csv\u6587\u4ef6\u4e2d\u6578\u503c\u6578\u64da\u5eab)"},"content":{"rendered":"

\u63d0\u53d6CSV\u6578\u503c\u6578\u64da (\u53ea\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u6578\u503c\u6578\u64da\u5eab)<\/h1>\n

CSV\uff08Comma-Separated Values\uff09\u6587\u4ef6\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6578\u64da\u5b58\u5132\u683c\u5f0f\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u4ea4\u63db\u548c\u6578\u64da\u5206\u6790\u3002\u7531\u65bc\u5176\u7c21\u55ae\u7684\u7d50\u69cb\uff0cCSV\u6587\u4ef6\u53ef\u4ee5\u8f15\u9b06\u5730\u88ab\u5404\u7a2e\u6578\u64da\u8655\u7406\u5de5\u5177\u548c\u7de8\u7a0b\u8a9e\u8a00\u8b80\u53d6\u548c\u8655\u7406\u3002\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u53ea\u9700\u8981\u5f9eCSV\u6587\u4ef6\u4e2d\u63d0\u53d6\u6578\u503c\u6578\u64da\uff0c\u800c\u5ffd\u7565\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u7684\u6578\u503c\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n

CSV\u6587\u4ef6\u7684\u7d50\u69cb<\/h2>\n

CSV\u6587\u4ef6\u7684\u57fa\u672c\u7d50\u69cb\u662f\u7531\u591a\u884c\u7d44\u6210\uff0c\u6bcf\u884c\u4ee3\u8868\u4e00\u689d\u8a18\u9304\uff0c\u5b57\u6bb5\u4e4b\u9593\u7528\u9017\u865f\u5206\u9694\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684CSV\u6587\u4ef6\u793a\u4f8b\uff1a<\/p>\n

\n\u59d3\u540d,\u5e74\u9f61,\u6536\u5165\n\u5f35\u4e09,30,50000\n\u674e\u56db,25,60000\n\u738b\u4e94,35,70000\n<\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7b2c\u4e00\u884c\u662f\u6a19\u984c\u884c\uff0c\u5f8c\u9762\u7684\u884c\u662f\u6578\u64da\u884c\u3002\u6bcf\u4e00\u884c\u5305\u542b\u4e09\u500b\u5b57\u6bb5\uff1a\u59d3\u540d\u3001\u5e74\u9f61\u548c\u6536\u5165\u3002<\/p>\n
\u63d0\u53d6\u6578\u503c\u6578\u64da\u7684\u65b9\u6cd5<\/h2>\n
\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u7684\u6578\u503c\u6578\u64da\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u7de8\u7a0b\u8a9e\u8a00\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u548cPandas\u5eab\u9032\u884c\u6578\u64da\u63d0\u53d6\u7684\u793a\u4f8b\u3002<\/p>\n
\u4f7f\u7528Python\u548cPandas\u63d0\u53d6\u6578\u503c\u6578\u64da<\/h3>\n
Pandas\u662f\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5206\u6790\u5eab\uff0c\u80fd\u5920\u8f15\u9b06\u5730\u8655\u7406CSV\u6587\u4ef6\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88ddPandas\u5eab\uff1a<\/p>\n
\npip install pandas\n<\/pre>\n
\u63a5\u4e0b\u4f86\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u7684\u6578\u503c\u6578\u64da\uff1a<\/p>\n
import pandas as pd\n\n# \u8b80\u53d6CSV\u6587\u4ef6\ndata = pd.read_csv('data.csv')\n\n# \u63d0\u53d6\u6578\u503c\u6578\u64da\nnumeric_data = data.select_dtypes(include=['number'])\n\n# \u986f\u793a\u63d0\u53d6\u7684\u6578\u503c\u6578\u64da\nprint(numeric_data)<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u4f7f\u7528Pandas\u7684`read_csv`\u51fd\u6578\u8b80\u53d6CSV\u6587\u4ef6\u3002\u7136\u5f8c\uff0c\u4f7f\u7528`select_dtypes`\u65b9\u6cd5\u9078\u64c7\u6578\u503c\u985e\u578b\u7684\u6578\u64da\u3002\u6700\u5f8c\uff0c\u6211\u5011\u6253\u5370\u51fa\u63d0\u53d6\u7684\u6578\u503c\u6578\u64da\u3002<\/p>\n
\u4f7f\u7528Python\u5167\u5efa\u7684csv\u6a21\u584a\u63d0\u53d6\u6578\u503c\u6578\u64da<\/h3>\n
\u5982\u679c\u60a8\u4e0d\u60f3\u4f7f\u7528Pandas\u5eab\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528Python\u5167\u5efa\u7684`csv`\u6a21\u584a\u4f86\u63d0\u53d6\u6578\u503c\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n
import csv\n\n# \u6253\u958bCSV\u6587\u4ef6\nwith open('data.csv', mode='r', encoding='utf-8') as file:\n    reader = csv.reader(file)\n    header = next(reader)  # \u8b80\u53d6\u6a19\u984c\u884c\n    numeric_data = []\n\n    for row in reader:\n        # \u63d0\u53d6\u6578\u503c\u6578\u64da\n        numeric_row = [float(value) for value in row[1:3]]  # \u5047\u8a2d\u53ea\u63d0\u53d6\u5e74\u9f61\u548c\u6536\u5165\n        numeric_data.append(numeric_row)\n\n# \u986f\u793a\u63d0\u53d6\u7684\u6578\u503c\u6578\u64da\nprint(numeric_data)<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528`csv.reader`\u4f86\u8b80\u53d6CSV\u6587\u4ef6\uff0c\u7136\u5f8c\u904d\u6b77\u6bcf\u4e00\u884c\uff0c\u5c07\u5e74\u9f61\u548c\u6536\u5165\u8f49\u63db\u70ba\u6d6e\u9ede\u6578\u4e26\u5b58\u5132\u5728`numeric_data`\u5217\u8868\u4e2d\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u7684\u6578\u503c\u6578\u64da\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u5728\u6578\u64da\u5206\u6790\u9084\u662f\u6578\u64da\u8655\u7406\u4e2d\u3002\u4f7f\u7528Python\u53ca\u5176\u76f8\u95dc\u5eab\uff0c\u5982Pandas\u6216\u5167\u5efa\u7684csv\u6a21\u584a\uff0c\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\u3002\u901a\u904e\u4e0a\u8ff0\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u81ea\u5df1\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u4f86\u63d0\u53d6\u6578\u503c\u6578\u64da\u3002<\/p>\n
\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u548c\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u6216\u4e91\u670d\u52a1\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u9805\u76ee\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5206\u6790\u63d0\u4f9b\u66f4\u5f37\u5927\u7684\u57fa\u790e\u8a2d\u65bd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63d0\u53d6CSV\u6587\u4ef6\u4e2d\u7684\u6578\u503c\u6578\u64da\uff0c\u8f15\u9b06\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u5eab\u4fe1\u606f\uff0c\u63d0\u5347\u6578\u64da\u5206\u6790\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-189054","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189054","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=189054"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189054\/revisions"}],"predecessor-version":[{"id":189055,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189054\/revisions\/189055"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}