{"id":1001966,"date":"2024-12-27T10:04:43","date_gmt":"2024-12-27T02:04:43","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1001966.html"},"modified":"2024-12-27T10:04:45","modified_gmt":"2024-12-27T02:04:45","slug":"python%e7%a8%8b%e5%ba%8f%e5%a6%82%e4%bd%95%e5%8a%a0%e8%a1%8c%e5%8f%b7","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1001966.html","title":{"rendered":"Python\u7a0b\u5e8f\u5982\u4f55\u52a0\u884c\u53f7"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25075922\/838b8d11-ba67-4cfe-88c9-4cca3e737eec.webp\" alt=\"Python\u7a0b\u5e8f\u5982\u4f55\u52a0\u884c\u53f7\" \/><\/p>\n<p><p> <strong>\u5728Python\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u884c\u53f7\u7684\u5e38\u7528\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528Python\u5185\u7f6e\u6a21\u5757\u3001\u624b\u52a8\u8bfb\u53d6\u6587\u4ef6\u3001\u4f7f\u7528\u5916\u90e8\u5e93\u7b49\u3002\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u901a\u8fc7\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u9010\u884c\u6dfb\u52a0\u884c\u53f7\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528Python\u7684\u5185\u7f6e\u51fd\u6570 <code>enumerate()<\/code> \u6765\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u5e76\u5728\u6bcf\u884c\u524d\u6dfb\u52a0\u884c\u53f7\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u7b80\u5355\u6613\u7528\uff0c\u800c\u4e14\u53ef\u4ee5\u8f7b\u677e\u5904\u7406\u5927\u6587\u4ef6\u3002\u4e0b\u9762\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u5176\u4ed6\u7684\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n<\/p>\n<hr>\n<p><h3>\u4e00\u3001\u4f7f\u7528 <code>enumerate()<\/code> \u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n<p><p><code>enumerate()<\/code> \u662fPython\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u904d\u5386\u5e8f\u5217\u7684\u540c\u65f6\u83b7\u53d6\u5f53\u524d\u5143\u7d20\u7684\u7d22\u5f15\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u8bfb\u53d6\u6587\u4ef6\u65f6\u4e3a\u6bcf\u4e00\u884c\u6dfb\u52a0\u884c\u53f7\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def add_line_numbers(file_path):<\/p>\n<p>    with open(file_path, &#39;r&#39;) as file:<\/p>\n<p>        for index, line in enumerate(file, start=1):<\/p>\n<p>            print(f&#39;{index}: {line}&#39;, end=&#39;&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>open()<\/code> \u51fd\u6570\u7528\u4e8e\u6253\u5f00\u6587\u4ef6\uff0c<code>enumerate()<\/code> \u51fd\u6570\u7528\u4e8e\u904d\u5386\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\uff0c\u5e76\u5728\u6bcf\u884c\u524d\u6dfb\u52a0\u884c\u53f7\u3002<code>start=1<\/code> \u53c2\u6570\u7528\u4e8e\u6307\u5b9a\u884c\u53f7\u4ece1\u5f00\u59cb\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528 <code>pandas<\/code> \u5e93<\/h3>\n<\/p>\n<p><p><code>pandas<\/code> \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u5206\u6790\u5e93\uff0c\u901a\u5e38\u7528\u4e8e\u5904\u7406\u6570\u636e\u8868\u683c\uff0c\u4f46\u5b83\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6587\u4ef6\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<p>def add_line_numbers_with_pandas(file_path):<\/p>\n<p>    df = pd.read_csv(file_path, sep=&quot;\\n&quot;, header=None)<\/p>\n<p>    df.index += 1<\/p>\n<p>    df.index.name = &#39;Line Number&#39;<\/p>\n<p>    print(df)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>pd.read_csv()<\/code> \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\uff0c\u5e76\u6307\u5b9a <code>sep=&quot;\\n&quot;<\/code> \u4ee5\u6309\u884c\u8bfb\u53d6\u3002<code>header=None<\/code> \u786e\u4fdd\u7b2c\u4e00\u884c\u4e3a\u6570\u636e\u800c\u4e0d\u662f\u5217\u540d\u3002\u901a\u8fc7 <code>df.index += 1<\/code>\uff0c\u6211\u4eec\u4e3a\u6bcf\u4e00\u884c\u6dfb\u52a0\u884c\u53f7\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528 <code>fileinput<\/code> \u6a21\u5757<\/h3>\n<\/p>\n<p><p><code>fileinput<\/code> \u6a21\u5757\u5141\u8bb8\u6211\u4eec\u5728\u904d\u5386\u6587\u4ef6\u65f6\u81ea\u52a8\u5904\u7406\u6bcf\u4e00\u884c\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u591a\u4e2a\u6587\u4ef6\u7684\u60c5\u51b5\u5c24\u5176\u6709\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import fileinput<\/p>\n<p>def add_line_numbers_with_fileinput(files):<\/p>\n<p>    for line in fileinput.input(files):<\/p>\n<p>        print(f&#39;{fileinput.filelineno()}: {line}&#39;, end=&#39;&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>fileinput.input()<\/code> \u51fd\u6570\u7528\u4e8e\u904d\u5386\u4f20\u5165\u7684\u6240\u6709\u6587\u4ef6\uff0c<code>fileinput.filelineno()<\/code> \u8fd4\u56de\u5f53\u524d\u6587\u4ef6\u7684\u884c\u53f7\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u624b\u52a8\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u4e0d\u60f3\u4f7f\u7528\u5185\u7f6e\u6a21\u5757\u6216\u5916\u90e8\u5e93\uff0c\u4e5f\u53ef\u4ee5\u624b\u52a8\u8bfb\u53d6\u6587\u4ef6\u5e76\u6dfb\u52a0\u884c\u53f7\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def add_line_numbers_manually(file_path):<\/p>\n<p>    with open(file_path, &#39;r&#39;) as file:<\/p>\n<p>        line_number = 1<\/p>\n<p>        for line in file:<\/p>\n<p>            print(f&#39;{line_number}: {line}&#39;, end=&#39;&#39;)<\/p>\n<p>            line_number += 1<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u8f83\u4e3a\u57fa\u7840\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u66f4\u9002\u5408\u521d\u5b66\u8005\u7406\u89e3\u548c\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u6216IDE<\/h3>\n<\/p>\n<p><p>\u8bb8\u591a\u6587\u672c\u7f16\u8f91\u5668\u6216IDE\uff0c\u5982Visual Studio Code\u3001PyCharm\u7b49\uff0c\u90fd\u63d0\u4f9b\u4e86\u5728\u7f16\u8f91\u5668\u4e2d\u663e\u793a\u884c\u53f7\u7684\u529f\u80fd\u3002\u8fd9\u5728\u8c03\u8bd5\u4ee3\u7801\u65f6\u5c24\u5176\u6709\u7528\u3002<\/p>\n<\/p>\n<p><h4>\u603b\u7ed3<\/h4>\n<\/p>\n<p><p>\u4e3aPython\u7a0b\u5e8f\u6dfb\u52a0\u884c\u53f7\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u4f7f\u7528\u573a\u666f\u3002\u65e0\u8bba\u662f\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u5916\u90e8\u5e93\uff0c\u8fd8\u662f\u624b\u52a8\u5b9e\u73b0\uff0c\u5173\u952e\u662f\u8981\u9009\u62e9\u6700\u9002\u5408\u81ea\u5df1\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u8c03\u8bd5\u548c\u7ba1\u7406\u4ee3\u7801\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u884c\u53f7\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u6216\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08IDE\uff09\u6765\u81ea\u52a8\u4e3a\u4ee3\u7801\u6dfb\u52a0\u884c\u53f7\u3002\u5927\u591a\u6570\u73b0\u4ee3IDE\uff08\u5982PyCharm\u3001VS Code\u7b49\uff09\u90fd\u6709\u5185\u7f6e\u7684\u884c\u53f7\u663e\u793a\u529f\u80fd\u3002\u82e5\u60f3\u5728\u6253\u5370\u8f93\u51fa\u4e2d\u663e\u793a\u884c\u53f7\uff0c\u53ef\u4ee5\u5229\u7528<code>enumerate()<\/code>\u51fd\u6570\u7ed3\u5408\u5faa\u73af\u904d\u5386\u5217\u8868\u6216\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<p><strong>\u53ef\u4ee5\u4f7f\u7528\u54ea\u4e9b\u65b9\u6cd5\u5728\u4ee3\u7801\u4e2d\u663e\u793a\u884c\u53f7\uff1f<\/strong><br \/>\u9664\u4e86\u4f7f\u7528<code>enumerate()<\/code>\uff0c\u8fd8\u53ef\u4ee5\u81ea\u5b9a\u4e49\u51fd\u6570\u6765\u8bfb\u53d6\u6587\u4ef6\u5e76\u663e\u793a\u884c\u53f7\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>open()<\/code>\u51fd\u6570\u6253\u5f00\u6587\u4ef6\uff0c\u9010\u884c\u8bfb\u53d6\u5185\u5bb9\u5e76\u5728\u6253\u5370\u65f6\u524d\u9762\u52a0\u4e0a\u884c\u53f7\uff0c\u8fd9\u6837\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u8f93\u51fa\u65f6\u65b9\u4fbf\u67e5\u770b\u4ee3\u7801\u884c\u53f7\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u5904\u7406\u5927\u6587\u4ef6\u5e76\u663e\u793a\u884c\u53f7\uff1f<\/strong><br \/>\u5904\u7406\u5927\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u9010\u884c\u8bfb\u53d6\u7684\u65b9\u5f0f\u6765\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u6574\u4e2a\u6587\u4ef6\u3002\u901a\u8fc7<code>for line_number, line in enumerate(file)<\/code>\u7ed3\u6784\uff0c\u53ef\u4ee5\u5728\u904d\u5386\u8fc7\u7a0b\u4e2d\u540c\u65f6\u83b7\u53d6\u884c\u53f7\u548c\u5185\u5bb9\uff0c\u4ece\u800c\u6709\u6548\u7ba1\u7406\u5185\u5b58\u4f7f\u7528\uff0c\u5e76\u4e14\u6e05\u6670\u663e\u793a\u6bcf\u884c\u7684\u7f16\u53f7\u3002<\/p>\n<p><strong>\u884c\u53f7\u5728\u8c03\u8bd5Python\u4ee3\u7801\u4e2d\u6709\u4ec0\u4e48\u5e2e\u52a9\uff1f<\/strong><br \/>\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u884c\u53f7\u53ef\u4ee5\u5e2e\u52a9\u5feb\u901f\u5b9a\u4f4d\u9519\u8bef\u6216\u5f02\u5e38\u3002\u82e5\u4ee3\u7801\u4e2d\u51fa\u73b0\u5f02\u5e38\uff0cPython\u4f1a\u63d0\u4f9b\u884c\u53f7\u4fe1\u606f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5feb\u901f\u627e\u5230\u95ee\u9898\u6240\u5728\u3002\u540c\u65f6\uff0c\u884c\u53f7\u4e5f\u4fbf\u4e8e\u5728<a href=\"https:\/\/docs.pingcode.com\/code-review\" target=\"_blank\">\u4ee3\u7801\u5ba1\u67e5<\/a>\u6216\u4e0e\u4ed6\u4eba\u5206\u4eab\u4ee3\u7801\u65f6\u8fdb\u884c\u8ba8\u8bba\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u884c\u53f7\u7684\u5e38\u7528\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528Python\u5185\u7f6e\u6a21\u5757\u3001\u624b\u52a8\u8bfb\u53d6\u6587\u4ef6\u3001\u4f7f\u7528\u5916\u90e8\u5e93\u7b49\u3002\u5176\u4e2d\uff0c [&hellip;]","protected":false},"author":3,"featured_media":1001977,"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\/1001966"}],"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=1001966"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1001966\/revisions"}],"predecessor-version":[{"id":1001978,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1001966\/revisions\/1001978"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1001977"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1001966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1001966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1001966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}