{"id":1489,"date":"2021-03-27T06:57:20","date_gmt":"2021-03-27T06:57:20","guid":{"rendered":"https:\/\/www.ipcpu.com\/?p=1489"},"modified":"2021-07-29T06:59:01","modified_gmt":"2021-07-29T06:59:01","slug":"pandas-dataframe-merge","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2021\/03\/pandas-dataframe-merge\/","title":{"rendered":"pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5"},"content":{"rendered":"<p>pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5.md<\/p>\n<p>pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5\u4e3b\u8981\u67093\u4e2d\u65b9\u6cd5\uff0c\u5206\u522b\u662fmerge()\u51fd\u6570\u3001concat()\u51fd\u6570\u3001append()\u51fd\u6570\uff0c\u5176\u4e2dmerge()\u51fd\u6570\u7528\u5f97\u8f83\u591a\u3002\u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6f14\u793a\u8fd93\u4e2a\u51fd\u6570\u7684\u7528\u6cd5\u3002<\/p>\n<h2 id=\"wiz-toc-0-1687779685\">\u4e00\u3001\u6570\u636e\u51c6\u5907<\/h2>\n<p>\u6211\u4eec\u51c6\u5907\u4e86\u4e24\u4e2aDataFrame\u6570\u636e\u8868\uff0c\u5982\u4e0b <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_8679bc2e-2916-439b-a406-4e1d205339ef.jpg\"><\/p>\n<h2 id=\"wiz-toc-1-1901461686\">\u4e8c\u3001merge()\u51fd\u6570<\/h2>\n<p>merge()\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u4e00\u4e2a\u6216\u591a\u4e2a\u540c\u540d\u7684\u5217\u5c06\u4e0d\u540c\u6570\u636e\u8868\u4e2d\u7684\u884c\u8fde\u63a5\u8d77\u6765\uff0c\u6f14\u793a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.merge(df1, df2)<\/code><\/pre>\n<\/div>\n<p>\u8fd0\u884c\u540edf3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_d816dc3f-6280-48a3-a2dc-c9be7eeffe6d.jpg\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0cmerge()\u51fd\u6570\u76f4\u63a5\u6839\u636e\u76f8\u540c\u7684\u5217\u540d\uff08\u201c\u516c\u53f8\u201d\u5217\uff09\u5bf9\u4e24\u4e2a\u6570\u636e\u8868\u8fdb\u884c\u4e86\u5408\u5e76\uff0c\u800c\u4e14\u9ed8\u8ba4\u9009\u53d6\u7684\u662f\u4e24\u4e2a\u8868\u5171\u6709\u7684\u5217\u5185\u5bb9\uff08'\u6052\u76db'\u3001'\u521b\u9510'\uff09\u3002\u5982\u679c\u540c\u540d\u7684\u5217\u4e0d\u6b62\u4e00\u4e2a\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u53c2\u6570on\u6307\u5b9a\u6309\u7167\u54ea\u4e00\u5217\u8fdb\u884c\u5408\u5e76\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.merge(df1, df2, on='\u516c\u53f8')<\/code><\/pre>\n<\/div>\n<p>\u9ed8\u8ba4\u7684\u5408\u5e76\u65b9\u5f0f\u5176\u5b9e\u662f\u53d6\u4ea4\u96c6\uff08inner\u8fde\u63a5\uff09\uff0c\u5373\u9009\u53d6\u4e24\u4e2a\u8868\u5171\u6709\u7684\u5185\u5bb9\u3002\u5982\u679c\u60f3\u53d6\u5e76\u96c6\uff08outer\u8fde\u63a5\uff09\uff0c\u5373\u9009\u53d6\u4e24\u4e2a\u8868\u6240\u6709\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u53c2\u6570how\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>1 df3 = pd.merge(df1, df2, how='outer')<\/code><\/pre>\n<\/div>\n<p>\u8fd0\u884c\u540edf3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u53ef\u4ee5\u770b\u5230\u6240\u6709\u6570\u636e\u90fd\u5728\uff0c\u539f\u6765\u6ca1\u6709\u7684\u5185\u5bb9\u5219\u7528\u7a7a\u503cNaN\u586b\u5145\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_e3eb6cca-d19f-4896-9625-82da5ce852bc.jpg\"> <br \/>\n\u5982\u679c\u60f3\u4fdd\u7559\u5de6\u8868\uff08df1\uff09\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u800c\u5bf9\u53f3\u8868\uff08df2\uff09\u4e0d\u592a\u5728\u610f\uff0c\u53ef\u4ee5\u5c06\u53c2\u6570how\u8bbe\u7f6e\u4e3a'left'\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.merge(df1, df2, how='left')<\/code><\/pre>\n<\/div>\n<p>\u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u5b8c\u6574\u4fdd\u7559\u4e86df1\u7684\u5185\u5bb9\uff08'\u6052\u76db'\u3001'\u521b\u9510'\u3001'\u5feb\u5b66'\uff09\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_ae2b43a0-8137-4d43-b41d-4081f3020bee.jpg\"><\/p>\n<p>\u540c\u7406\uff0c\u5982\u679c\u60f3\u4fdd\u7559\u53f3\u8868\uff08df2\uff09\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u800c\u4e0d\u592a\u5728\u610f\u5de6\u8868\uff08df1\uff09\uff0c\u53ef\u4ee5\u5c06\u53c2\u6570how\u8bbe\u7f6e\u4e3a'right'\u3002<\/p>\n<p>\u5982\u679c\u60f3\u6309\u7167\u884c\u7d22\u5f15\u8fdb\u884c\u5408\u5e76\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u53c2\u6570left_index\u548cright_index\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.merge(df1, df2, left_index=True, right_index=True)<\/code><\/pre>\n<\/div>\n<p>\u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u4e24\u4e2a\u8868\u6309\u7167\u5b83\u4eec\u7684\u884c\u7d22\u5f15\u8fdb\u884c\u4e86\u5408\u5e76\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_e9b5f44f-5aba-47d4-8a87-a489f4cd6e4d.jpg\"><\/p>\n<h2 id=\"wiz-toc-2-1385851597\">\u4e09\u3001concat()\u51fd\u6570<\/h2>\n<p>concat()\u51fd\u6570\u4f7f\u7528\u5168\u8fde\u63a5\uff08UNION ALL\uff09\u65b9\u5f0f\u5b8c\u6210\u62fc\u63a5\uff0c\u5b83\u4e0d\u9700\u8981\u5bf9\u9f50\uff0c\u800c\u662f\u76f4\u63a5\u8fdb\u884c\u5408\u5e76\uff0c\u5373\u4e0d\u9700\u8981\u4e24\u4e2a\u8868\u6709\u76f8\u540c\u7684\u5217\u6216\u7d22\u5f15\uff0c\u53ea\u662f\u628a\u6570\u636e\u6574\u5408\u5230\u4e00\u8d77\u3002\u56e0\u6b64\uff0c\u8be5\u51fd\u6570\u6ca1\u6709\u53c2\u6570how\u548con\uff0c\u800c\u662f\u7528\u53c2\u6570axis\u6307\u5b9a\u8fde\u63a5\u7684\u8f74\u5411\u3002\u8be5\u53c2\u6570\u9ed8\u8ba4\u503c\u4e3a0\uff0c\u6307\u6309\u884c\u65b9\u5411\u8fde\u63a5\uff08\u7eb5\u5411\u62fc\u63a5\uff09\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.concat([df1, df2])  \n# \u6216\u8005\u5199\u6210df3 = pd.concat([df1, df2], axis=0)<\/code><\/pre>\n<\/div>\n<p>\u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_1cd2ff50-6267-4a46-9f1b-bf936e7a902c.jpg\"> <br \/>\n\u6b64\u65f6\u7684\u884c\u7d22\u5f15\u4e3a\u539f\u6765\u4e24\u4e2a\u8868\u5404\u81ea\u7684\u7d22\u5f15\uff0c\u5982\u679c\u60f3\u91cd\u7f6e\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u75283.5.1\u8282\u8bb2\u8fc7\u7684reset_index()\u51fd\u6570\uff0c\u6216\u8005\u5728concat()\u51fd\u6570\u4e2d\u8bbe\u7f6e\u53c2\u6570ignore_index\u4e3aTrue\u6765\u5ffd\u7565\u539f\u6709\u7d22\u5f15\uff0c\u751f\u6210\u65b0\u7684\u6570\u5b57\u5e8f\u5217\u4f5c\u4e3a\u7d22\u5f15\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.concat([df1, df2], ignore_index=True)<\/code><\/pre>\n<\/div>\n<p>\u5982\u679c\u60f3\u6309\u5217\u65b9\u5411\u8fde\u63a5\uff0c\u5373\u6a2a\u5411\u62fc\u63a5\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u53c2\u6570axis\u4e3a1\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = pd.concat([df1, df2], axis=1)<\/code><\/pre>\n<\/div>\n<p>\u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_3ebdec5b-4b93-47b4-aab2-00e76595a1fb.jpg\"><\/p>\n<h2 id=\"wiz-toc-3-1074515981\">\u56db\u3001append()\u51fd\u6570<\/h2>\n<p>append()\u51fd\u6570\u53ef\u4ee5\u770b\u6210concat()\u51fd\u6570\u7684\u7b80\u5316\u7248\uff0c\u6548\u679c\u548cpd.concat([df1,df2])\u7c7b\u4f3c\uff0c\u5b9e\u73b0\u7684\u4e5f\u662f\u7eb5\u5411\u62fc\u63a5\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = df1.append(df2)<\/code><\/pre>\n<\/div>\n<p>append()\u51fd\u6570\u8fd8\u6709\u4e00\u4e2a\u548c\u5217\u8868\u7684append()\u51fd\u6570\u4e00\u6837\u7684\u7528\u9014\u2014\u2014\u65b0\u589e\u5143\u7d20\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>df3 = df1.append({'\u516c\u53f8': '\u817e\u98de', '\u5206\u6570': '90'}, ignore_index=True)<\/code><\/pre>\n<\/div>\n<p>\u8fd9\u91cc\u4e00\u5b9a\u8981\u8bbe\u7f6e\u53c2\u6570ignore_index\u4e3aTrue\u6765\u5ffd\u7565\u539f\u7d22\u5f15\uff0c\u5426\u5219\u4f1a\u62a5\u9519\u3002\u751f\u6210\u7684df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 <br \/>\n<img decoding=\"async\" src=\"https:\/\/www.ipcpu.com\/wp-content\/uploads\/2021\/07\/a4156da2b058711eed14a0729760725d_528e6083-db7b-4bd6-9e54-d5cd7d3477e2.jpg\"><\/p>\n<h2 id=\"wiz-toc-4-570574886\">\u4e94\u3001\u603b\u7ed3<\/h2>\n<p>merge()\u51fd\u6570\u6700\u5e38\u7528\uff0c\u4e3b\u8981\u7528\u4e8e\u57fa\u4e8e\u6307\u5b9a\u5217\u7684\u6a2a\u5411\u5408\u5e76 <br \/>\nconcat()\u51fd\u6570\u4e00\u822c\u7528\u6765\u65e0\u8111\u6a2a\u5411\u548c\u7eb5\u5411\u62fc\u63a5 <br \/>\nappend()\u51fd\u6570\u5b9e\u73b0\u65e0\u8111\u7eb5\u5411\u62fc\u63a5\uff0c\u4e5f\u7528\u4e8e\u65b0\u589e\u4e00\u884c\u6570\u636e <br \/>\n\u7531\u6b64\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0cconcat()\u548cappend()\u51fd\u6570\u90fd\u662f\u65e0\u8111\u786c\u62fc\uff0c\u4e0d\u5173\u5fc3\u6570\u636e\u662f\u5426\u5bf9\u5e94\uff1b\u53ea\u6709merge()\u51fd\u6570\u624d\u6709\u53c2\u6570\u63a7\u5236\u548c\u5e76\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"wiz-toc-5-1552918287\">\u516d\u3001\u53c2\u8003\u8d44\u6599<\/h2>\n<p><a href=\"https:\/\/bigdata.51cto.com\/art\/202007\/620338.htm\">https:\/\/bigdata.51cto.com\/art\/202007\/620338.htm<\/a> <br \/>\n<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/69224745\">https:\/\/zhuanlan.zhihu.com\/p\/69224745<\/a> <br \/>\n\u300a\u8d85\u7b80\u5355\uff1a\u7528Python\u8ba9Excel\u98de\u8d77\u6765\u300b\u673a\u68b0\u5de5\u4e1a\u51fa\u7248\u793e\uff0c3.5.4\u7ae0<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/c.ipcpu.com\">IPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> &raquo; <a href=\"https:\/\/c.ipcpu.com\/2021\/03\/pandas-dataframe-merge\/\">pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5.md pandas\u4e2d\u5bf9DataFrame\u8fdb\u884c\u5408\u5e76\u548c\u62fc\u63a5\u4e3b\u8981\u67093\u4e2d\u65b9\u6cd5\uff0c\u5206\u522b\u662fmerge()\u51fd\u6570\u3001concat()\u51fd\u6570\u3001append()\u51fd\u6570\uff0c\u5176\u4e2dmerge()\u51fd\u6570\u7528\u5f97\u8f83\u591a\u3002\u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6f14\u793a\u8fd93\u4e2a\u51fd\u6570\u7684\u7528\u6cd5\u3002 \u4e00\u3001\u6570\u636e\u51c6\u5907 \u6211\u4eec\u51c6\u5907\u4e86\u4e24\u4e2aDataFrame\u6570\u636e\u8868\uff0c\u5982\u4e0b \u4e8c\u3001merge()\u51fd\u6570 merge()\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u4e00\u4e2a\u6216\u591a\u4e2a\u540c\u540d\u7684\u5217\u5c06\u4e0d\u540c\u6570\u636e\u8868\u4e2d\u7684\u884c\u8fde\u63a5\u8d77\u6765\uff0c\u6f14\u793a\u4ee3\u7801\u5982\u4e0b\uff1a df3 = pd.merge(df1, df2) \u8fd0\u884c\u540edf3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 \u53ef\u4ee5\u770b\u5230\uff0cmerge()\u51fd\u6570\u76f4\u63a5\u6839\u636e\u76f8\u540c\u7684\u5217\u540d\uff08\u201c\u516c\u53f8\u201d\u5217\uff09\u5bf9\u4e24\u4e2a\u6570\u636e\u8868\u8fdb\u884c\u4e86\u5408\u5e76\uff0c\u800c\u4e14\u9ed8\u8ba4\u9009\u53d6\u7684\u662f\u4e24\u4e2a\u8868\u5171\u6709\u7684\u5217\u5185\u5bb9\uff08&#8217;\u6052\u76db&#8217;\u3001&#8217;\u521b\u9510&#8217;\uff09\u3002\u5982\u679c\u540c\u540d\u7684\u5217\u4e0d\u6b62\u4e00\u4e2a\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u53c2\u6570on\u6307\u5b9a\u6309\u7167\u54ea\u4e00\u5217\u8fdb\u884c\u5408\u5e76\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a df3 = pd.merge(df1, df2, on=&#8217;\u516c\u53f8&#8217;) \u9ed8\u8ba4\u7684\u5408\u5e76\u65b9\u5f0f\u5176\u5b9e\u662f\u53d6\u4ea4\u96c6\uff08inner\u8fde\u63a5\uff09\uff0c\u5373\u9009\u53d6\u4e24\u4e2a\u8868\u5171\u6709\u7684\u5185\u5bb9\u3002\u5982\u679c\u60f3\u53d6\u5e76\u96c6\uff08outer\u8fde\u63a5\uff09\uff0c\u5373\u9009\u53d6\u4e24\u4e2a\u8868\u6240\u6709\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u53c2\u6570how\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a 1 df3 = pd.merge(df1, df2, how=&#8217;outer&#8217;) \u8fd0\u884c\u540edf3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u53ef\u4ee5\u770b\u5230\u6240\u6709\u6570\u636e\u90fd\u5728\uff0c\u539f\u6765\u6ca1\u6709\u7684\u5185\u5bb9\u5219\u7528\u7a7a\u503cNaN\u586b\u5145\u3002 \u5982\u679c\u60f3\u4fdd\u7559\u5de6\u8868\uff08df1\uff09\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u800c\u5bf9\u53f3\u8868\uff08df2\uff09\u4e0d\u592a\u5728\u610f\uff0c\u53ef\u4ee5\u5c06\u53c2\u6570how\u8bbe\u7f6e\u4e3a&#8217;left&#8217;\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a df3 = pd.merge(df1, df2, how=&#8217;left&#8217;) \u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u5b8c\u6574\u4fdd\u7559\u4e86df1\u7684\u5185\u5bb9\uff08&#8217;\u6052\u76db&#8217;\u3001&#8217;\u521b\u9510&#8217;\u3001&#8217;\u5feb\u5b66&#8217;\uff09\u3002 \u540c\u7406\uff0c\u5982\u679c\u60f3\u4fdd\u7559\u53f3\u8868\uff08df2\uff09\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u800c\u4e0d\u592a\u5728\u610f\u5de6\u8868\uff08df1\uff09\uff0c\u53ef\u4ee5\u5c06\u53c2\u6570how\u8bbe\u7f6e\u4e3a&#8217;right&#8217;\u3002 \u5982\u679c\u60f3\u6309\u7167\u884c\u7d22\u5f15\u8fdb\u884c\u5408\u5e76\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u53c2\u6570left_index\u548cright_index\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a df3 = pd.merge(df1, df2, left_index=True, right_index=True) \u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\uff0c\u4e24\u4e2a\u8868\u6309\u7167\u5b83\u4eec\u7684\u884c\u7d22\u5f15\u8fdb\u884c\u4e86\u5408\u5e76\u3002 \u4e09\u3001concat()\u51fd\u6570 concat()\u51fd\u6570\u4f7f\u7528\u5168\u8fde\u63a5\uff08UNION ALL\uff09\u65b9\u5f0f\u5b8c\u6210\u62fc\u63a5\uff0c\u5b83\u4e0d\u9700\u8981\u5bf9\u9f50\uff0c\u800c\u662f\u76f4\u63a5\u8fdb\u884c\u5408\u5e76\uff0c\u5373\u4e0d\u9700\u8981\u4e24\u4e2a\u8868\u6709\u76f8\u540c\u7684\u5217\u6216\u7d22\u5f15\uff0c\u53ea\u662f\u628a\u6570\u636e\u6574\u5408\u5230\u4e00\u8d77\u3002\u56e0\u6b64\uff0c\u8be5\u51fd\u6570\u6ca1\u6709\u53c2\u6570how\u548con\uff0c\u800c\u662f\u7528\u53c2\u6570axis\u6307\u5b9a\u8fde\u63a5\u7684\u8f74\u5411\u3002\u8be5\u53c2\u6570\u9ed8\u8ba4\u503c\u4e3a0\uff0c\u6307\u6309\u884c\u65b9\u5411\u8fde\u63a5\uff08\u7eb5\u5411\u62fc\u63a5\uff09\u3002\u4ee3\u7801\u5982\u4e0b\uff1a df3 = pd.concat([df1, df2]) # \u6216\u8005\u5199\u6210df3 = pd.concat([df1, df2], axis=0) \u6b64\u65f6df3\u7684\u5185\u5bb9\u89c1\u4e0b\u8868\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,13],"tags":[],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1489"}],"collection":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/comments?post=1489"}],"version-history":[{"count":1,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1489\/revisions"}],"predecessor-version":[{"id":1490,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1489\/revisions\/1490"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=1489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=1489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=1489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}