{"id":1043418,"date":"2024-12-31T13:05:56","date_gmt":"2024-12-31T05:05:56","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1043418.html"},"modified":"2024-12-31T13:06:11","modified_gmt":"2024-12-31T05:06:11","slug":"python2%e5%a6%82%e4%bd%95%e8%be%93%e5%87%ba%e4%b8%a4%e5%88%97%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1043418.html","title":{"rendered":"python2\u5982\u4f55\u8f93\u51fa\u4e24\u5217\u6570\u636e"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/12\/7e085543-8538-48c1-8ff6-3afd45f41646.webp?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"python2\u5982\u4f55\u8f93\u51fa\u4e24\u5217\u6570\u636e\" \/><\/p>\n<p><p> <strong>\u5728Python2\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8f93\u51fa\u4e24\u5217\u6570\u636e<\/strong>\uff0c\u4f8b\u5982\u4f7f\u7528<code>print<\/code>\u8bed\u53e5\u3001\u5faa\u73af\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7b49\u3002<strong>\u5176\u4e2d\u4e00\u79cd\u5e38\u89c1\u65b9\u6cd5\u662f\u4f7f\u7528<code>zip<\/code>\u51fd\u6570\u5c06\u4e24\u5217\u6570\u636e\u8fdb\u884c\u914d\u5bf9\uff0c\u7136\u540e\u4f7f\u7528<code>print<\/code>\u8bed\u53e5\u8fdb\u884c\u8f93\u51fa<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u79cd\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528 <code>zip<\/code> \u51fd\u6570<\/h3>\n<\/p>\n<p><p><code>zip<\/code> \u51fd\u6570\u53ef\u4ee5\u5c06\u4e24\u4e2a\u5217\u8868\u4e2d\u7684\u5143\u7d20\u914d\u5bf9\u6210\u5143\u7ec4\uff0c\u7136\u540e\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u904d\u5386\u8fd9\u4e9b\u5143\u7ec4\uff0c\u5e76\u4f7f\u7528<code>print<\/code>\u8bed\u53e5\u8f93\u51fa\u4e24\u5217\u6570\u636e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u793a\u4f8b\u6570\u636e<\/p>\n<p>column1 = [1, 2, 3, 4, 5]<\/p>\n<p>column2 = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<h2><strong>\u4f7f\u7528 zip \u51fd\u6570\u914d\u5bf9\u6570\u636e<\/strong><\/h2>\n<p>p<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>red_columns = zip(column1, column2)<\/p>\n<h2><strong>\u8f93\u51fa\u914d\u5bf9\u540e\u7684\u6570\u636e<\/strong><\/h2>\n<p>for col1, col2 in paired_columns:<\/p>\n<p>    print col1, col2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528 <code>enumerate<\/code> \u51fd\u6570<\/h3>\n<\/p>\n<p><p><code>enumerate<\/code> \u51fd\u6570\u53ef\u4ee5\u5728\u904d\u5386\u5217\u8868\u7684\u540c\u65f6\u83b7\u53d6\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u7ed3\u5408\u4e24\u4e2a\u5217\u8868\u7684\u957f\u5ea6\u8fdb\u884c\u53cc\u91cd\u904d\u5386\u8f93\u51fa\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u793a\u4f8b\u6570\u636e<\/p>\n<p>column1 = [1, 2, 3, 4, 5]<\/p>\n<p>column2 = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<h2><strong>\u4f7f\u7528 enumerate \u51fd\u6570\u904d\u5386\u6570\u636e<\/strong><\/h2>\n<p>for i, (col1, col2) in enumerate(zip(column1, column2)):<\/p>\n<p>    print col1, col2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n<p><p>\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u53ef\u4ee5\u4f7f\u8f93\u51fa\u66f4\u52a0\u7f8e\u89c2\u6574\u9f50\u3002Python2 \u4e2d\u53ef\u4ee5\u4f7f\u7528 <code>%<\/code> \u8fdb\u884c\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u793a\u4f8b\u6570\u636e<\/p>\n<p>column1 = [1, 2, 3, 4, 5]<\/p>\n<p>column2 = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<h2><strong>\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8f93\u51fa\u6570\u636e<\/strong><\/h2>\n<p>for col1, col2 in zip(column1, column2):<\/p>\n<p>    print &quot;%-10s %-10s&quot; % (col1, col2)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u4f7f\u7528 <code>pandas<\/code> \u5e93<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u6570\u636e\u91cf\u8f83\u5927\u4e14\u9700\u8981\u5904\u7406\u548c\u8f93\u51fa\u4e24\u5217\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>pandas<\/code> \u5e93\u3002<code>pandas<\/code> \u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u6570\u636e\u5206\u6790\u5e93\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5904\u7406\u548c\u8f93\u51fa\u6570\u636e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u793a\u4f8b\u6570\u636e<\/strong><\/h2>\n<p>data = {<\/p>\n<p>    &#39;Column1&#39;: [1, 2, 3, 4, 5],<\/p>\n<p>    &#39;Column2&#39;: [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<p>}<\/p>\n<h2><strong>\u521b\u5efa DataFrame<\/strong><\/h2>\n<p>df = pd.DataFrame(data)<\/p>\n<h2><strong>\u8f93\u51fa DataFrame<\/strong><\/h2>\n<p>print df<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u4f7f\u7528 <code>itertools<\/code> \u5e93<\/h3>\n<\/p>\n<p><p><code>itertools<\/code> \u5e93\u63d0\u4f9b\u4e86\u591a\u4e2a\u8fed\u4ee3\u5668\u751f\u6210\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u751f\u6210\u590d\u6742\u7684\u8fed\u4ee3\u5668\u3002\u53ef\u4ee5\u4f7f\u7528 <code>itertools.izip<\/code> \u6765\u914d\u5bf9\u4e24\u4e2a\u5217\u8868\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import itertools<\/p>\n<h2><strong>\u793a\u4f8b\u6570\u636e<\/strong><\/h2>\n<p>column1 = [1, 2, 3, 4, 5]<\/p>\n<p>column2 = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<h2><strong>\u4f7f\u7528 itertools.izip \u914d\u5bf9\u6570\u636e<\/strong><\/h2>\n<p>paired_columns = itertools.izip(column1, column2)<\/p>\n<h2><strong>\u8f93\u51fa\u914d\u5bf9\u540e\u7684\u6570\u636e<\/strong><\/h2>\n<p>for col1, col2 in paired_columns:<\/p>\n<p>    print col1, col2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516d\u3001\u4f7f\u7528 <code>csv<\/code> \u5e93<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u9700\u8981\u5c06\u4e24\u5217\u6570\u636e\u8f93\u51fa\u5230 CSV \u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>csv<\/code> \u5e93\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import csv<\/p>\n<h2><strong>\u793a\u4f8b\u6570\u636e<\/strong><\/h2>\n<p>column1 = [1, 2, 3, 4, 5]<\/p>\n<p>column2 = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<h2><strong>\u8f93\u51fa\u5230 CSV \u6587\u4ef6<\/strong><\/h2>\n<p>with open(&#39;output.csv&#39;, &#39;w&#39;) as csvfile:<\/p>\n<p>    writer = csv.writer(csvfile)<\/p>\n<p>    writer.writerow([&#39;Column1&#39;, &#39;Column2&#39;])<\/p>\n<p>    for col1, col2 in zip(column1, column2):<\/p>\n<p>        writer.writerow([col1, col2])<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e03\u3001\u7ed3\u5408\u5176\u4ed6\u5e93\u8fdb\u884c\u66f4\u590d\u6742\u7684\u8f93\u51fa<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u7ed3\u5408\u5176\u4ed6\u5e93\u8fdb\u884c\u66f4\u590d\u6742\u7684\u8f93\u51fa\u3002\u4f8b\u5982\uff0c\u7ed3\u5408 <code>numpy<\/code> \u8fdb\u884c\u6570\u503c\u8ba1\u7b97\uff0c\u7ed3\u5408 <code>matplotlib<\/code> \u8fdb\u884c\u6570\u636e\u53ef\u89c6\u5316\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>import matplotlib.pyplot as plt<\/p>\n<h2><strong>\u793a\u4f8b\u6570\u636e<\/strong><\/h2>\n<p>column1 = np.array([1, 2, 3, 4, 5])<\/p>\n<p>column2 = np.array([10, 20, 30, 40, 50])<\/p>\n<h2><strong>\u6253\u5370\u4e24\u5217\u6570\u636e<\/strong><\/h2>\n<p>for col1, col2 in zip(column1, column2):<\/p>\n<p>    print col1, col2<\/p>\n<h2><strong>\u7ed8\u5236\u6570\u636e\u56fe\u8868<\/strong><\/h2>\n<p>plt.scatter(column1, column2)<\/p>\n<p>plt.xlabel(&#39;Column 1&#39;)<\/p>\n<p>plt.ylabel(&#39;Column 2&#39;)<\/p>\n<p>plt.title(&#39;Scatter plot of Column 1 vs Column 2&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516b\u3001\u5904\u7406\u548c\u8f93\u51fa\u5927\u89c4\u6a21\u6570\u636e<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u4f18\u5316\u4ee3\u7801\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u53ef\u4ee5\u4f7f\u7528\u751f\u6210\u5668\u548c\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u6765\u5904\u7406\u548c\u8f93\u51fa\u4e24\u5217\u6570\u636e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u751f\u6210\u5927\u89c4\u6a21\u6570\u636e<\/p>\n<p>column1 = (i for i in range(1, 1000001))<\/p>\n<p>column2 = (chr(65 + i % 26) for i in range(1000000))<\/p>\n<h2><strong>\u4f7f\u7528\u751f\u6210\u5668\u8f93\u51fa\u6570\u636e<\/strong><\/h2>\n<p>for col1, col2 in zip(column1, column2):<\/p>\n<p>    print col1, col2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e5d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728Python2\u4e2d\uff0c\u8f93\u51fa\u4e24\u5217\u6570\u636e\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528 <code>zip<\/code> \u51fd\u6570\u3001<code>enumerate<\/code> \u51fd\u6570\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001<code>pandas<\/code> \u5e93\u3001<code>itertools<\/code> \u5e93\u3001<code>csv<\/code> \u5e93\u7b49\u3002\u5bf9\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528\u751f\u6210\u5668\u548c\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u6765\u63d0\u9ad8\u6548\u7387\u3002\u7ed3\u5408\u5176\u4ed6\u5e93\u8fdb\u884c\u6570\u636e\u5904\u7406\u548c\u53ef\u89c6\u5316\uff0c\u53ef\u4ee5\u4f7f\u6570\u636e\u5904\u7406\u8fc7\u7a0b\u66f4\u52a0\u9ad8\u6548\u548c\u76f4\u89c2\u3002\u5e0c\u671b\u672c\u6587\u6240\u63d0\u4f9b\u7684\u65b9\u6cd5\u548c\u793a\u4f8b\u4ee3\u7801\u5bf9\u60a8\u5728Python2\u4e2d\u8f93\u51fa\u4e24\u5217\u6570\u636e\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python 2\u4e2d\u6253\u5370\u4e24\u5217\u6570\u636e\uff1f<\/strong><br \/>\u5728Python 2\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6216\u7b80\u5355\u7684print\u8bed\u53e5\u8f93\u51fa\u4e24\u5217\u6570\u636e\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\uff1a  <\/p>\n<pre><code class=\"language-python\">data1 = [&quot;Alice&quot;, &quot;Bob&quot;, &quot;Charlie&quot;]\ndata2 = [25, 30, 35]\n\nfor name, age in zip(data1, data2):\n    print &quot;{:&lt;10} {}&quot;.format(name, age)\n<\/code><\/pre>\n<p>\u6b64\u4ee3\u7801\u5c06\u8f93\u51fa\u4e24\u5217\uff0c\u7b2c\u4e00\u5217\u4e3a\u59d3\u540d\uff0c\u7b2c\u4e8c\u5217\u4e3a\u5e74\u9f84\uff0c\u4e14\u59d3\u540d\u5217\u5de6\u5bf9\u9f50\u3002<\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528pandas\u5e93\u5728Python 2\u4e2d\u8f93\u51fa\u4e24\u5217\u6570\u636e\uff1f<\/strong><br \/>\u5982\u679c\u4f60\u5728\u6570\u636e\u5904\u7406\u65f6\u4f7f\u7528pandas\u5e93\uff0c\u53ef\u4ee5\u8f7b\u677e\u8f93\u51fa\u4e24\u5217\u6570\u636e\u3002\u5b89\u88c5pandas\u540e\uff0c\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a  <\/p>\n<pre><code class=\"language-python\">import pandas as pd\n\ndata = {&#39;Name&#39;: [&#39;Alice&#39;, &#39;Bob&#39;, &#39;Charlie&#39;], &#39;Age&#39;: [25, 30, 35]}\ndf = pd.DataFrame(data)\n\nprint df[[&#39;Name&#39;, &#39;Age&#39;]]\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u4ee5\u8868\u683c\u5f62\u5f0f\u8f93\u51fa\u4e24\u5217\u6570\u636e\uff0c\u4fbf\u4e8e\u9605\u8bfb\u548c\u5206\u6790\u3002<\/p>\n<p><strong>\u5728Python 2\u4e2d\uff0c\u5982\u4f55\u5c06\u4e24\u5217\u6570\u636e\u5199\u5165\u6587\u4ef6\uff1f<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7\u6587\u4ef6\u64cd\u4f5c\u5c06\u4e24\u5217\u6570\u636e\u5199\u5165\u6587\u672c\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a  <\/p>\n<pre><code class=\"language-python\">data1 = [&quot;Alice&quot;, &quot;Bob&quot;, &quot;Charlie&quot;]\ndata2 = [25, 30, 35]\n\nwith open(&#39;output.txt&#39;, &#39;w&#39;) as f:\n    for name, age in zip(data1, data2):\n        f.write(&quot;{:&lt;10} {}\\n&quot;.format(name, age))\n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5c06\u4e24\u5217\u6570\u636e\u5199\u5165\u540d\u4e3a<code>output.txt<\/code>\u7684\u6587\u4ef6\u4e2d\uff0c\u6bcf\u884c\u5305\u542b\u4e00\u4e2a\u59d3\u540d\u548c\u5bf9\u5e94\u7684\u5e74\u9f84\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python2\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8f93\u51fa\u4e24\u5217\u6570\u636e\uff0c\u4f8b\u5982\u4f7f\u7528print\u8bed\u53e5\u3001\u5faa\u73af\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7b49\u3002\u5176\u4e2d\u4e00\u79cd\u5e38\u89c1\u65b9 [&hellip;]","protected":false},"author":3,"featured_media":1043455,"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\/1043418"}],"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=1043418"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1043418\/revisions"}],"predecessor-version":[{"id":1043457,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1043418\/revisions\/1043457"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1043455"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1043418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1043418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1043418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}