{"id":1032,"date":"2022-10-23T06:56:13","date_gmt":"2022-10-22T22:56:13","guid":{"rendered":"http:\/\/viplao.com\/?p=1032"},"modified":"2022-10-23T06:56:48","modified_gmt":"2022-10-22T22:56:48","slug":"%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7-%e6%95%b0%e6%8d%ae%e5%90%88%e5%b9%b6","status":"publish","type":"post","link":"http:\/\/viplao.com\/index.php\/2022\/10\/23\/%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7-%e6%95%b0%e6%8d%ae%e5%90%88%e5%b9%b6\/","title":{"rendered":"\u8fd0\u7ef4\u5de5\u5177 &#8211; \u6570\u636e\u5408\u5e76\u5b9e\u4f8b"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>data=df.merge(df3,how='left',on='order_sn')\n\nv=\"{} vs{}ss {}\".format(\"hello\", \"world\", \"world\")\n\nimport pandas as pd\r\n \r\ndf1 = pd.DataFrame({'id': &#91;'001', '002', '003'],\r\n                    'num1': &#91;120, 101, 104],\r\n                    'num2': &#91;110, 102, 121],\r\n                    'num3': &#91;105, 120, 113]})\r\ndf2 = pd.DataFrame({'id': &#91;'001', '002', '003'],\r\n                    'num4': &#91;80, 86, 79]})\r\nprint(df1)\r\nprint(\"=======================================\")\r\nprint(df2)\r\nprint(\"=======================================\")\r\ndf_merge = pd.merge(df1, df2, on='id')\r\nprint(df_merge)\r\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.jbzj.com\/file_images\/article\/202207\/202207050800341.png\" alt=\"\"\/><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>df_merge = pd.merge(df1, df2, on='id', how=\"outer\")\r\nprint(df_merge)<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.jbzj.com\/file_images\/article\/202207\/202207050800355.png\" alt=\"\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import pandas as pd\r\ndf1 = pd.DataFrame({'id': &#91;'001', '002', '002', '002', '003'],\r\n                    'num1': &#91;120, 101, 104, 114, 123],\r\n                    'num2': &#91;110, 102, 121, 113, 126],\r\n                    'num3': &#91;105, 120, 113, 124, 128]})\r\ndf2 = pd.DataFrame({'id': &#91;'001', '001', '002', '003', '001'],\r\n                    'num4': &#91;80, 86, 79, 88, 93]})\r\nprint(df1)\r\nprint(\"=======================================\")\r\nprint(df2)\r\nprint(\"=======================================\")\ndf_merge = pd.merge(df1, df2, on='id')\r\nprint(df_merge)<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.jbzj.com\/file_images\/article\/202207\/2022070508003511.png\" alt=\"\"\/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/viplao.com\/index.php\/2022\/10\/23\/%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7-%e6%95%b0%e6%8d%ae%e5%90%88%e5%b9%b6\/#%E9%87%8D%E8%A6%81%E5%8F%82%E6%95%B0\" title=\"\u91cd\u8981\u53c2\u6570\">\u91cd\u8981\u53c2\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/viplao.com\/index.php\/2022\/10\/23\/%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7-%e6%95%b0%e6%8d%ae%e5%90%88%e5%b9%b6\/#%E5%90%88%E5%B9%B6%E6%96%B9%E5%BC%8F_left_right_outer_inner\" title=\"\u5408\u5e76\u65b9\u5f0f left right outer inner\">\u5408\u5e76\u65b9\u5f0f left right outer inner<\/a><\/li><\/ul><\/nav><\/div>\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%87%8D%E8%A6%81%E5%8F%82%E6%95%B0\"><\/span>\u91cd\u8981\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<blockquote class=\"wp-block-quote\"><p>pd.merge(right,how=\u2018inner\u2019, on=\u201cNone\u201d, left_on=\u201cNone\u201d, right_on=\u201cNone\u201d, left_index=False, right_index=False )<\/p><\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u53c2\u6570<\/th><th>\u63cf\u8ff0<\/th><\/tr><\/thead><tbody><tr><td>left<\/td><td>\u5de6\u8868\uff0c\u5408\u5e76\u5bf9\u8c61\uff0cDataFrame\u6216Series<\/td><\/tr><tr><td>right<\/td><td>\u53f3\u8868\uff0c\u5408\u5e76\u5bf9\u8c61\uff0cDataFrame\u6216Series<\/td><\/tr><tr><td>how<\/td><td>\u5408\u5e76\u65b9\u5f0f\uff0c\u53ef\u4ee5\u662fleft(\u5de6\u5408\u5e76), right(\u53f3\u5408\u5e76), outer(\u5916\u5408\u5e76), inner(\u5185\u5408\u5e76)<\/td><\/tr><tr><td>on<\/td><td>\u57fa\u51c6\u5217 \u7684\u5217\u540d<\/td><\/tr><tr><td>left_on<\/td><td>\u5de6\u8868\u57fa\u51c6\u5217\u5217\u540d<\/td><\/tr><tr><td>right_on<\/td><td>\u53f3\u8868\u57fa\u51c6\u5217\u5217\u540d<\/td><\/tr><tr><td>left_index<\/td><td>\u5de6\u5217\u662f\u5426\u4ee5index\u4e3a\u57fa\u51c6\uff0c\u9ed8\u8ba4False\uff0c\u5426<\/td><\/tr><tr><td>right_index<\/td><td>\u53f3\u5217\u662f\u5426\u4ee5index\u4e3a\u57fa\u51c6\uff0c\u9ed8\u8ba4False\uff0c\u5426<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u5176\u4e2d\uff0cleft_index\u4e0eright_index \u4e0d\u80fd\u4e0e on \u540c\u65f6\u6307\u5b9a\u3002<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%90%88%E5%B9%B6%E6%96%B9%E5%BC%8F_left_right_outer_inner\"><\/span>\u5408\u5e76\u65b9\u5f0f left right outer inner<span class=\"ez-toc-section-end\"><\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>\u91cd\u8981\u53c2\u6570 pd.merge(right,how=\u2018inner\u2019, on=\u201cNone\u201d, left_o&hellip; <a href=\"http:\/\/viplao.com\/index.php\/2022\/10\/23\/%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7-%e6%95%b0%e6%8d%ae%e5%90%88%e5%b9%b6\/\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u8fd0\u7ef4\u5de5\u5177 &#8211; \u6570\u636e\u5408\u5e76\u5b9e\u4f8b<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"views":858,"_links":{"self":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1032"}],"collection":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/comments?post=1032"}],"version-history":[{"count":3,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1032\/revisions"}],"predecessor-version":[{"id":1046,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1032\/revisions\/1046"}],"wp:attachment":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/media?parent=1032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/categories?post=1032"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/tags?post=1032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}