{"id":956443,"date":"2024-12-27T02:34:45","date_gmt":"2024-12-26T18:34:45","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/956443.html"},"modified":"2024-12-27T02:34:48","modified_gmt":"2024-12-26T18:34:48","slug":"%e7%94%a8python%e5%a6%82%e4%bd%95%e5%b8%a6%e5%85%a5%e8%a1%a8%e6%a0%bc","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/956443.html","title":{"rendered":"\u7528python\u5982\u4f55\u5e26\u5165\u8868\u683c"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25100040\/b96a7811-46a9-4ca4-a0d5-2a33129430cc.webp\" alt=\"\u7528python\u5982\u4f55\u5e26\u5165\u8868\u683c\" \/><\/p>\n<p><p> <strong>\u4f7f\u7528Python\u5bfc\u5165\u8868\u683c\u7684\u6838\u5fc3\u65b9\u6cd5\u6709\u591a\u79cd\uff1a\u4f7f\u7528Pandas\u5e93\u3001\u5229\u7528Openpyxl\u5904\u7406Excel\u6587\u4ef6\u3001\u4f7f\u7528csv\u6a21\u5757\u8bfb\u53d6CSV\u6587\u4ef6\u3002Pandas\u5e93\u662f\u6700\u5e38\u7528\u7684\uff0c\u56e0\u4e3a\u5b83\u529f\u80fd\u5f3a\u5927\u4e14\u6613\u4e8e\u4f7f\u7528\u3002\u63a5\u4e0b\u6765\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528Pandas\u5e93\u8bfb\u53d6\u8868\u683c\u6570\u636e\u3002<\/strong><\/p>\n<\/p>\n<hr>\n<p><p>\u4e00\u3001PANDAS\u5e93\u7b80\u4ecb<\/p>\n<\/p>\n<p><p>Pandas\u662fPython\u6570\u636e\u5206\u6790\u7684\u5229\u5668\uff0c\u5b83\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784\u548c\u6570\u636e\u5206\u6790\u5de5\u5177\u3002Pandas\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u662fDataFrame\uff0c\u5b83\u7c7b\u4f3c\u4e8e\u7535\u5b50\u8868\u683c\u6216SQL\u8868\u683c\uff0c\u80fd\u591f\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u7684\u64cd\u4f5c\u3001\u6e05\u6d17\u548c\u5206\u6790\u3002Pandas\u652f\u6301\u591a\u79cd\u6570\u636e\u683c\u5f0f\u7684\u5bfc\u5165\uff0c\u5305\u62ecCSV\u3001Excel\u3001SQL\u6570\u636e\u5e93\u7b49\u3002<\/p>\n<\/p>\n<p><p>Pandas\u901a\u8fc7\u4e24\u4e2a\u4e3b\u8981\u7684\u6570\u636e\u7ed3\u6784\u6765\u7ba1\u7406\u6570\u636e\uff1aSeries\u548cDataFrame\u3002Series\u662f\u4e00\u7ef4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7c7b\u4f3c\u4e8e\u5217\u8868\u6216\u6570\u7ec4\uff1bDataFrame\u662f\u4e8c\u7ef4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7c7b\u4f3c\u4e8e\u7535\u5b50\u8868\u683c\u3002<\/p>\n<\/p>\n<p><p>\u8981\u4f7f\u7528Pandas\u5e93\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u5b83\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5Pandas\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pandas<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u5728Python\u811a\u672c\u4e2d\u5bfc\u5165Pandas\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528PANDAS\u8bfb\u53d6CSV\u6587\u4ef6<\/p>\n<\/p>\n<p><p>CSV\uff08Comma Separated Values\uff09\u662f\u4e00\u79cd\u7b80\u5355\u7684\u6587\u4ef6\u683c\u5f0f\uff0c\u7528\u4e8e\u5b58\u50a8\u8868\u683c\u6570\u636e\u3002Pandas\u53ef\u4ee5\u901a\u8fc7<code>read_csv<\/code>\u51fd\u6570\u8f7b\u677e\u8bfb\u53d6CSV\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u8bfb\u53d6CSV\u6587\u4ef6<\/strong><\/h2>\n<p>df = pd.read_csv(&#39;file.csv&#39;)<\/p>\n<h2><strong>\u67e5\u770b\u524d\u4e94\u884c\u6570\u636e<\/strong><\/h2>\n<p>print(df.head())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8bfb\u53d6CSV\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u6307\u5b9a\u5206\u9694\u7b26\u3001\u7f16\u7801\u683c\u5f0f\u3001\u9700\u8981\u8bfb\u53d6\u7684\u5217\u7b49\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679cCSV\u6587\u4ef6\u4f7f\u7528\u5206\u53f7\u5206\u9694\uff0c\u53ef\u4ee5\u6307\u5b9a<code>sep<\/code>\u53c2\u6570\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">df = pd.read_csv(&#39;file.csv&#39;, sep=&#39;;&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528PANDAS\u8bfb\u53d6EXCEL\u6587\u4ef6<\/p>\n<\/p>\n<p><p>Pandas\u8fd8\u53ef\u4ee5\u8bfb\u53d6Excel\u6587\u4ef6\uff0c\u5229\u7528<code>read_excel<\/code>\u51fd\u6570\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8bfb\u53d6Excel\u6587\u4ef6\u9700\u8981\u5b89\u88c5<code>openpyxl<\/code>\u6216<code>xlrd<\/code>\u5e93\u3002<\/p>\n<\/p>\n<p><p>\u5b89\u88c5<code>openpyxl<\/code>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install openpyxl<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8bfb\u53d6Excel\u6587\u4ef6\u7684\u57fa\u672c\u7528\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u8bfb\u53d6Excel\u6587\u4ef6<\/strong><\/h2>\n<p>df = pd.read_excel(&#39;file.xlsx&#39;, sheet_name=&#39;Sheet1&#39;)<\/p>\n<h2><strong>\u67e5\u770b\u524d\u4e94\u884c\u6570\u636e<\/strong><\/h2>\n<p>print(df.head())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f60\u53ef\u4ee5\u6307\u5b9a\u8981\u8bfb\u53d6\u7684\u5de5\u4f5c\u8868\u540d\u79f0\u6216\u7d22\u5f15\uff0cPandas\u4f1a\u8fd4\u56de\u4e00\u4e2aDataFrame\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528PANDAS\u8bfb\u53d6SQL\u6570\u636e\u5e93<\/p>\n<\/p>\n<p><p>Pandas\u53ef\u4ee5\u76f4\u63a5\u4eceSQL\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u7c7b\u578b\uff0c\u5982SQLite\u3001MySQL\u3001PostgreSQL\u7b49\u3002\u9700\u8981\u5b89\u88c5\u76f8\u5e94\u7684\u6570\u636e\u5e93\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n<\/p>\n<p><p>\u4ee5SQLite\u4e3a\u4f8b\uff0c\u9996\u5148\u5b89\u88c5SQLite\u6570\u636e\u5e93\u7684Python\u9a71\u52a8\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install sqlalchemy<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u7136\u540e\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8bfb\u53d6\u6570\u636e\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<p>from sqlalchemy import create_engine<\/p>\n<h2><strong>\u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5<\/strong><\/h2>\n<p>engine = create_engine(&#39;sqlite:\/\/\/database.db&#39;)<\/p>\n<h2><strong>\u8bfb\u53d6SQL\u8868\u683c\u6570\u636e<\/strong><\/h2>\n<p>df = pd.read_sql(&#39;SELECT * FROM table_name&#39;, engine)<\/p>\n<h2><strong>\u67e5\u770b\u524d\u4e94\u884c\u6570\u636e<\/strong><\/h2>\n<p>print(df.head())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528PANDAS\u5904\u7406\u6570\u636e<\/p>\n<\/p>\n<p><p>Pandas\u4e0d\u4ec5\u53ef\u4ee5\u8bfb\u53d6\u6570\u636e\uff0c\u8fd8\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u591a\u79cd\u64cd\u4f5c\uff0c\u5982\u6570\u636e\u6e05\u6d17\u3001\u8f6c\u6362\u3001\u5206\u6790\u7b49\u3002<\/p>\n<\/p>\n<ol>\n<li>\u6570\u636e\u6e05\u6d17\uff1aPandas\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u51fd\u6570\u7528\u4e8e\u5904\u7406\u7f3a\u5931\u503c\u3001\u91cd\u590d\u503c\u7b49\u6570\u636e\u6e05\u6d17\u64cd\u4f5c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u5220\u9664\u7f3a\u5931\u503c<\/p>\n<p>df.dropna(inplace=True)<\/p>\n<h2><strong>\u586b\u5145\u7f3a\u5931\u503c<\/strong><\/h2>\n<p>df.fillna(value=0, inplace=True)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u6570\u636e\u8f6c\u6362\uff1a\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u3001\u683c\u5f0f\u5316\u7b49\u64cd\u4f5c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u8f6c\u6362\u6570\u636e\u7c7b\u578b<\/p>\n<p>df[&#39;column_name&#39;] = df[&#39;column_name&#39;].astype(float)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"3\">\n<li>\u6570\u636e\u5206\u6790\uff1aPandas\u63d0\u4f9b\u4e86\u8bb8\u591a\u7edf\u8ba1\u51fd\u6570\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u63cf\u8ff0\u6027\u7edf\u8ba1\u5206\u6790\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u8ba1\u7b97\u5747\u503c<\/p>\n<p>mean_value = df[&#39;column_name&#39;].mean()<\/p>\n<h2><strong>\u8ba1\u7b97\u4e2d\u4f4d\u6570<\/strong><\/h2>\n<p>median_value = df[&#39;column_name&#39;].median()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516d\u3001\u4f7f\u7528PANDAS\u5bfc\u51fa\u6570\u636e<\/p>\n<\/p>\n<p><p>\u5904\u7406\u5b8c\u6570\u636e\u540e\uff0cPandas\u8fd8\u53ef\u4ee5\u5c06DataFrame\u5bfc\u51fa\u4e3a\u591a\u79cd\u683c\u5f0f\uff0c\u5305\u62ecCSV\u3001Excel\u3001SQL\u6570\u636e\u5e93\u7b49\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5bfc\u51fa\u4e3aCSV\u6587\u4ef6\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">df.to_csv(&#39;output.csv&#39;, index=False)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u5bfc\u51fa\u4e3aExcel\u6587\u4ef6\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">df.to_excel(&#39;output.xlsx&#39;, index=False)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"3\">\n<li>\u5bfc\u51fa\u5230SQL\u6570\u636e\u5e93\uff1a<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">df.to_sql(&#39;table_name&#39;, engine, if_exists=&#39;replace&#39;, index=False)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e03\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u4f7f\u7528Python\u5bfc\u5165\u8868\u683c\u6570\u636e\u662f\u6570\u636e\u5206\u6790\u7684\u57fa\u7840\u6b65\u9aa4\uff0cPandas\u5e93\u63d0\u4f9b\u4e86\u7b80\u4fbf\u7684\u65b9\u6cd5\u6765\u8bfb\u53d6\u548c\u5904\u7406\u5404\u79cd\u683c\u5f0f\u7684\u6570\u636e\u6587\u4ef6\u3002\u5728\u5b9e\u8df5\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5bfc\u5165\u65b9\u6cd5\u548c\u53c2\u6570\u8bbe\u7f6e\uff0c\u80fd\u591f\u6709\u6548\u63d0\u9ad8\u6570\u636e\u5904\u7406\u7684\u6548\u7387\u3002\u901a\u8fc7Pandas\uff0c\u6570\u636e\u5bfc\u5165\u3001\u6e05\u6d17\u3001\u5206\u6790\u5230\u5bfc\u51fa\u53ef\u4ee5\u4e00\u7ad9\u5f0f\u5b8c\u6210\uff0c\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u6570\u636e\u5904\u7406\u7684\u4fbf\u5229\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8bfb\u53d6\u548c\u5904\u7406Excel\u8868\u683c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528pandas\u5e93\u6765\u8bfb\u53d6\u548c\u5904\u7406Excel\u8868\u683c\u3002\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u4e86pandas\u548copenpyxl\u5e93\u3002\u4f7f\u7528<code>pd.read_excel()<\/code>\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u52a0\u8f7dExcel\u6587\u4ef6\uff0c\u5e76\u901a\u8fc7DataFrame\u5bf9\u8c61\u8fdb\u884c\u6570\u636e\u5904\u7406\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002<\/p>\n<p><strong>Python\u652f\u6301\u54ea\u4e9b\u7c7b\u578b\u7684\u8868\u683c\u683c\u5f0f\uff1f<\/strong><br \/>Python\u652f\u6301\u591a\u79cd\u8868\u683c\u683c\u5f0f\uff0c\u5305\u62ecCSV\u3001Excel\uff08.xls\u548c.xlsx\uff09\u3001Google Sheets\u7b49\u3002\u4f7f\u7528pandas\u5e93\u53ef\u4ee5\u8bfb\u53d6\u548c\u5199\u5165\u8fd9\u4e9b\u683c\u5f0f\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u5e93\uff0c\u5982csv\u548copenpyxl\uff0c\u6765\u5904\u7406\u7279\u5b9a\u7684\u6587\u4ef6\u7c7b\u578b\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u5c06\u6570\u636e\u5199\u5165\u5230Excel\u8868\u683c\uff1f<\/strong><br \/>\u4f7f\u7528pandas\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7<code>DataFrame.to_excel()<\/code>\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165Excel\u8868\u683c\u3002\u63d0\u4f9b\u6587\u4ef6\u540d\u548cDataFrame\u5bf9\u8c61\uff0c\u4fbf\u53ef\u5c06\u6570\u636e\u4fdd\u5b58\u4e3aExcel\u6587\u4ef6\u3002\u8fd8\u53ef\u4ee5\u4f7f\u7528\u53c2\u6570\u8bbe\u7f6e\u5de5\u4f5c\u8868\u540d\u79f0\u3001\u662f\u5426\u4fdd\u7559\u7d22\u5f15\u7b49\u9009\u9879\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4f7f\u7528Python\u5bfc\u5165\u8868\u683c\u7684\u6838\u5fc3\u65b9\u6cd5\u6709\u591a\u79cd\uff1a\u4f7f\u7528Pandas\u5e93\u3001\u5229\u7528Openpyxl\u5904\u7406Excel\u6587\u4ef6\u3001\u4f7f\u7528cs [&hellip;]","protected":false},"author":3,"featured_media":956445,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/956443"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=956443"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/956443\/revisions"}],"predecessor-version":[{"id":956447,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/956443\/revisions\/956447"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/956445"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=956443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=956443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=956443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}