{"id":204107,"date":"2025-05-29T12:34:05","date_gmt":"2025-05-29T04:34:05","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204107\/"},"modified":"2025-05-29T12:34:05","modified_gmt":"2025-05-29T04:34:05","slug":"%e5%a6%82%e4%bd%95%e7%94%a8-pandas-%e5%90%88%e5%b9%b6%e8%b7%a8%e5%ba%97%e9%93%ba%e5%90%8c%e4%b8%80%e4%b8%9a%e5%8a%a1%e5%91%98%e7%9a%84%e4%b8%9a%e7%bb%a9%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204107\/","title":{"rendered":"\u5982\u4f55\u7528 Pandas \u5408\u5e76\u8de8\u5e97\u94fa\u540c\u4e00\u4e1a\u52a1\u5458\u7684\u4e1a\u7ee9\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u7528 Pandas \u5408\u5e76\u8de8\u5e97\u94fa\u540c\u4e00\u4e1a\u52a1\u5458\u7684\u4e1a\u7ee9\uff1f<\/h1>\n<p>\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730098458671f351a006d7.jpg\" class=\"aligncenter\"><\/p>\n<p>\u540c\u4e00\u4e1a\u52a1\u5458\u8de8\u5e97\u94fa\u4e1a\u7ee9\u7edf\u8ba1<\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u56fe\uff0c\u540c\u4e00\u4e2a\u4e1a\u52a1\u5458\u53ef\u80fd\u5206\u5e03\u5728\u4e0d\u540c\u5e97\u94fa\u4e2d\uff0c\u5982\u4f55\u7528 pandas \u5c06\u76f8\u540c\u4e1a\u52a1\u5458\u7684\u4e1a\u7ee9\u52a0\u603b\uff1f<\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 pandas \u7684 groupby() api \u6839\u636e\u4e1a\u52a1\u5458\u59d3\u540d\u8fdb\u884c\u5206\u7ec4\uff0c\u7136\u540e\u4f7f\u7528 sum() \u51fd\u6570\u5bf9\u6bcf\u4e2a\u7ec4\u7684\u4e1a\u7ee9\u8fdb\u884c\u6c42\u548c\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>import pandas as pd\n\ndf = pd.dataframe({\n    \"\u4e1a\u52a1\u5458\": [\"\u5c0f\u660e\", \"\u5c0f\u660e\", \"\u5c0f\u7ea2\", \"\u5c0f\u7ea2\", \"\u5c0f\u660e\"],\n    \"\u4e1a\u7ee9\": [10, 20, 30, 40, 50]\n})\n\nresult = df.groupby(\"\u4e1a\u52a1\u5458\")[\"\u4e1a\u7ee9\"].sum()\nprint(result)<\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre>\u4e1a\u52a1\u5458\n\u5c0f\u660e     80\n\u5c0f\u7ea2     70<\/pre>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5982\u4f55\u7528 Pandas \u5408\u5e76\u8de8\u5e97\u94fa\u540c\u4e00\u4e1a\u52a1\u5458\u7684\u4e1a\u7ee9\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u7528 Pandas \u5408\u5e76\u8de8\u5e97\u94fa&#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-204107","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204107","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=204107"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204107\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}