{"id":937783,"date":"2024-12-26T19:58:36","date_gmt":"2024-12-26T11:58:36","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/937783.html"},"modified":"2024-12-26T19:58:38","modified_gmt":"2024-12-26T11:58:38","slug":"python%e5%a6%82%e4%bd%95%e5%88%86%e8%a1%8ccount","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/937783.html","title":{"rendered":"python\u5982\u4f55\u5206\u884ccount"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25073456\/3deb793e-52a8-4d35-b803-d47990039f24.webp\" alt=\"python\u5982\u4f55\u5206\u884ccount\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5bf9\u6587\u672c\u8fdb\u884c\u5206\u884c\u8ba1\u6570\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u548c\u5e93\u51fd\u6570\u7b49\uff0c\u5176\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528<code>splitlines()<\/code>\u65b9\u6cd5\u3001\u8bfb\u53d6\u6587\u4ef6\u9010\u884c\u8ba1\u6570\u3001\u4f7f\u7528<code>re<\/code>\u6a21\u5757\u7b49\u3002\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528<code>splitlines()<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u5206\u884c\u8ba1\u6570\u3002<\/strong><\/p>\n<\/p>\n<p><p><code>splitlines()<\/code> \u65b9\u6cd5\u662f\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u65b9\u6cd5\uff0c\u5b83\u5c06\u5b57\u7b26\u4e32\u6309\u884c\u5206\u9694\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u5404\u884c\u4f5c\u4e3a\u5143\u7d20\u7684\u5217\u8868\u3002\u5728\u4f7f\u7528 <code>splitlines()<\/code> \u65b9\u6cd5\u65f6\uff0c\u65e0\u9700\u6307\u5b9a\u5206\u9694\u7b26\uff0c\u5b83\u4f1a\u81ea\u52a8\u8bc6\u522b\u6362\u884c\u7b26\uff08\u5305\u62ec <code>\\n<\/code>\u3001<code>\\r<\/code> \u548c <code>\\r\\n<\/code>\uff09\uff0c\u8fd9\u4f7f\u5f97\u8be5\u65b9\u6cd5\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5904\u7406\u591a\u5e73\u53f0\u6587\u672c\u6587\u4ef6\u6216\u5b57\u7b26\u4e32\u3002\u5728\u83b7\u5f97\u5206\u5272\u540e\u7684\u5217\u8868\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528 <code>len()<\/code> \u51fd\u6570\u6765\u83b7\u53d6\u884c\u6570\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u5173\u4e8ePython\u4e2d\u5982\u4f55\u8fdb\u884c\u5206\u884c\u8ba1\u6570\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n<\/p>\n<p><p>\u4e00\u3001SPLITLINES() \u65b9\u6cd5<\/p>\n<\/p>\n<p><p><code>splitlines()<\/code> \u662f Python \u4e2d\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5b83\u7528\u4e8e\u6309\u884c\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u5404\u884c\u4f5c\u4e3a\u5143\u7d20\u7684\u5217\u8868\u3002\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u65b9\u4fbf\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u80fd\u591f\u81ea\u52a8\u8bc6\u522b\u591a\u79cd\u6362\u884c\u7b26\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u57fa\u672c\u7528\u6cd5<\/strong><\/li>\n<\/ol>\n<p><p>\u5f53\u5904\u7406\u5b57\u7b26\u4e32\u65f6\uff0c\u4f7f\u7528 <code>splitlines()<\/code> \u65b9\u6cd5\u53ef\u4ee5\u5feb\u901f\u5c06\u5176\u5206\u5272\u4e3a\u884c\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &quot;&quot;&quot;This is line 1.<\/p>\n<p>This is line 2.<\/p>\n<p>This is line 3.&quot;&quot;&quot;<\/p>\n<p>lines = text.splitlines()<\/p>\n<p>line_count = len(lines)<\/p>\n<p>print(f&quot;Number of lines: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>splitlines()<\/code> \u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32 <code>text<\/code> \u5206\u5272\u4e3a\u4e00\u4e2a\u5305\u542b\u4e09\u884c\u7684\u5217\u8868\uff0c<code>len(lines)<\/code> \u8ba1\u7b97\u51fa\u884c\u6570\u4e3a 3\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5904\u7406\u4e0d\u540c\u5e73\u53f0\u7684\u6362\u884c\u7b26<\/strong><\/li>\n<\/ol>\n<p><p><code>splitlines()<\/code> \u65b9\u6cd5\u80fd\u591f\u8bc6\u522b\u4e0d\u540c\u5e73\u53f0\u7684\u6362\u884c\u7b26\uff08\u5982 <code>\\n<\/code>\u3001<code>\\r<\/code> \u548c <code>\\r\\n<\/code>\uff09\u3002\u8fd9\u5bf9\u4e8e\u5904\u7406\u6765\u81ea\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u6587\u672c\u6587\u4ef6\u975e\u5e38\u6709\u7528\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &quot;First line.\\rSecond line.\\nThird line.\\r\\nFourth line.&quot;<\/p>\n<p>lines = text.splitlines()<\/p>\n<p>print(lines)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8f93\u51fa\u5c06\u662f\uff1a<\/p>\n<\/p>\n<p><pre><code>[&#39;First line.&#39;, &#39;Second line.&#39;, &#39;Third line.&#39;, &#39;Fourth line.&#39;]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u8bf4\u660e <code>splitlines()<\/code> \u65b9\u6cd5\u6210\u529f\u8bc6\u522b\u4e86\u4e0d\u540c\u7684\u6362\u884c\u7b26\uff0c\u5e76\u5c06\u5176\u5206\u5272\u4e3a\u72ec\u7acb\u7684\u884c\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u8bfb\u53d6\u6587\u4ef6\u9010\u884c\u8ba1\u6570<\/p>\n<\/p>\n<p><p>\u5f53\u5904\u7406\u6587\u4ef6\u65f6\uff0c\u901a\u5e38\u9700\u8981\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u9010\u884c\u8fdb\u884c\u8ba1\u6570\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u6587\u4ef6\u5bf9\u8c61\u7684\u8fed\u4ee3\u5668\u6765\u5b8c\u6210\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u9010\u884c\u8bfb\u53d6\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n<p><p>\u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>with open()<\/code> \u8bed\u53e5\u6765\u6253\u5f00\u6587\u4ef6\uff0c\u5e76\u901a\u8fc7\u6587\u4ef6\u5bf9\u8c61\u7684 <code>readlines()<\/code> \u65b9\u6cd5\u6216\u76f4\u63a5\u8fed\u4ee3\u6587\u4ef6\u5bf9\u8c61\u6765\u8bfb\u53d6\u884c\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">with open(&#39;example.txt&#39;, &#39;r&#39;) as file:<\/p>\n<p>    lines = file.readlines()<\/p>\n<p>    line_count = len(lines)<\/p>\n<p>    print(f&quot;Number of lines: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6216\u8005\u76f4\u63a5\u8fed\u4ee3\u6587\u4ef6\u5bf9\u8c61\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">with open(&#39;example.txt&#39;, &#39;r&#39;) as file:<\/p>\n<p>    line_count = sum(1 for line in file)<\/p>\n<p>    print(f&quot;Number of lines: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u9ad8\u6548\uff0c\u800c\u4e14\u80fd\u591f\u5904\u7406\u5927\u6587\u4ef6\u800c\u4e0d\u4f1a\u5360\u7528\u592a\u591a\u5185\u5b58\uff0c\u56e0\u4e3a\u5b83\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5904\u7406\u5927\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n<p><p>\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6587\u4ef6\uff0c<code>readlines()<\/code> \u65b9\u6cd5\u53ef\u80fd\u4f1a\u56e0\u4e3a\u5185\u5b58\u9650\u5236\u800c\u4e0d\u9002\u7528\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u76f4\u63a5\u8fed\u4ee3\u6587\u4ef6\u5bf9\u8c61\u662f\u4e00\u79cd\u66f4\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4f1a\u4e00\u6b21\u6027\u5c06\u6240\u6709\u884c\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/p>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u5904\u7406\u6587\u672c\u7684\u5f3a\u5927\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u66f4\u52a0\u590d\u6742\u7684\u884c\u8ba1\u6570\u9700\u6c42\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u5229\u7528 <code>re<\/code> \u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p><code>re<\/code> \u6a21\u5757\u63d0\u4f9b\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u652f\u6301\uff0c\u53ef\u4ee5\u7528\u6765\u5339\u914d\u884c\u7ed3\u675f\u7b26\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>text = &quot;Line one.\\nLine two.\\nLine three.&quot;<\/p>\n<p>line_count = len(re.findall(r&#39;\\n&#39;, text)) + 1<\/p>\n<p>print(f&quot;Number of lines: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6b64\u65b9\u6cd5\u901a\u8fc7\u67e5\u627e <code>\\n<\/code> \u6765\u8ba1\u7b97\u884c\u6570\uff0c\u5e76\u52a0\u4e00\u4ee5\u5305\u62ec\u6700\u540e\u4e00\u884c\u6ca1\u6709\u6362\u884c\u7b26\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u7075\u6d3b\u6027<\/strong><\/li>\n<\/ol>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u8bc6\u522b\u6807\u51c6\u6362\u884c\u7b26\uff0c\u8fd8\u53ef\u4ee5\u6839\u636e\u9700\u8981\u81ea\u5b9a\u4e49\u5339\u914d\u6a21\u5f0f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5904\u7406\u4ee5\u7279\u5b9a\u5b57\u7b26\u4e32\u7ed3\u5c3e\u7684\u884c\uff0c\u6216\u5ffd\u7565\u7a7a\u884c\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &quot;Line one.\\n\\nLine two.\\n\\nLine three.&quot;<\/p>\n<p>line_count = len(re.findall(r&#39;^(?!\\s*$).+&#39;, text, re.MULTILINE))<\/p>\n<p>print(f&quot;Number of non-empty lines: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6b64\u6b63\u5219\u8868\u8fbe\u5f0f\u4ec5\u5339\u914d\u975e\u7a7a\u884c\uff0c\u4ece\u800c\u53ef\u4ee5\u8ba1\u7b97\u4e0d\u5305\u62ec\u7a7a\u884c\u7684\u603b\u884c\u6570\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528\u5916\u90e8\u5e93<\/p>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u5916\u90e8\u5e93\u53ef\u4ee5\u63d0\u4f9b\u989d\u5916\u7684\u7075\u6d3b\u6027\u548c\u529f\u80fd\u3002\u4f8b\u5982\uff0c<code>pandas<\/code> \u5e93\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u5927\u578b\u6570\u636e\u6587\u4ef6\u5e76\u8fdb\u884c\u884c\u8ba1\u6570\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u4f7f\u7528 Pandas \u5904\u7406 CSV \u6587\u4ef6<\/strong><\/li>\n<\/ol>\n<p><p><code>pandas<\/code> \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\uff0c\u9002\u5408\u7528\u4e8e\u7ed3\u6784\u5316\u6570\u636e\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<p>df = pd.read_csv(&#39;example.csv&#39;)<\/p>\n<p>line_count = len(df)<\/p>\n<p>print(f&quot;Number of lines in CSV: {line_count}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u83b7\u53d6\u884c\u6570\uff0c\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5206\u6790\u6570\u636e\uff0c\u4f8b\u5982\u8ba1\u7b97\u7279\u5b9a\u5217\u7684\u503c\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u9002\u7528\u4e8e\u590d\u6742\u6570\u636e\u5206\u6790<\/strong><\/li>\n<\/ol>\n<p><p>\u5bf9\u4e8e\u9700\u8981\u8fdb\u884c\u590d\u6742\u6570\u636e\u5206\u6790\u7684\u573a\u666f\uff0c<code>pandas<\/code> \u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u5904\u7406 CSV \u6587\u4ef6\uff0c\u8fd8\u53ef\u4ee5\u5904\u7406 Excel\u3001SQL \u6570\u636e\u5e93\u7b49\u683c\u5f0f\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n<p><p>\u603b\u7ed3\uff1a<\/p>\n<\/p>\n<p><p>\u5728 Python \u4e2d\uff0c\u5206\u884c\u8ba1\u6570\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c\u5177\u4f53\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002<code>splitlines()<\/code> \u65b9\u6cd5\u662f\u5904\u7406\u5b57\u7b26\u4e32\u7684\u7b80\u5355\u6709\u6548\u5de5\u5177\uff0c\u800c\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u9002\u5408\u5904\u7406\u5927\u6587\u4ef6\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\uff0c\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u884c\u5339\u914d\u9700\u6c42\u3002\u800c\u5bf9\u4e8e\u7ed3\u6784\u5316\u6570\u636e\u6587\u4ef6\uff0c<code>pandas<\/code> \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u80fd\u591f\u5728\u884c\u8ba1\u6570\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u590d\u6742\u7684\u6570\u636e\u5206\u6790\u3002\u901a\u8fc7\u7075\u6d3b\u8fd0\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u5404\u79cd\u573a\u666f\u4e0b\u9ad8\u6548\u5730\u8fdb\u884c\u5206\u884c\u8ba1\u6570\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u7edf\u8ba1\u6587\u672c\u6587\u4ef6\u7684\u884c\u6570\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684<code>open()<\/code>\u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\uff0c\u5e76\u901a\u8fc7\u5faa\u73af\u904d\u5386\u6bcf\u4e00\u884c\u6765\u7edf\u8ba1\u884c\u6570\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&#39;yourfile.txt&#39;, &#39;r&#39;) as file:\n    line_count = sum(1 for line in file)\nprint(f&#39;\u6587\u4ef6\u884c\u6570: {line_count}&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6709\u6548\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406\u8f83\u5c0f\u7684\u6587\u4ef6\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u7edf\u8ba1\u5b57\u7b26\u4e32\u7684\u884c\u6570\uff1f<\/strong><br \/>\u5982\u679c\u9700\u8981\u7edf\u8ba1\u4e00\u4e2a\u591a\u884c\u5b57\u7b26\u4e32\u4e2d\u7684\u884c\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528<code>splitlines()<\/code>\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u4f1a\u6839\u636e\u884c\u5206\u9694\u7b26\u5c06\u5b57\u7b26\u4e32\u62c6\u5206\u4e3a\u591a\u4e2a\u884c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5217\u8868\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">text = &quot;&quot;&quot;\u7b2c\u4e00\u884c\n\u7b2c\u4e8c\u884c\n\u7b2c\u4e09\u884c&quot;&quot;&quot;\nline_count = len(text.splitlines())\nprint(f&#39;\u5b57\u7b26\u4e32\u884c\u6570: {line_count}&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u9002\u5408\u5904\u7406\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u7684\u591a\u884c\u6587\u672c\u3002<\/p>\n<p><strong>Python\u4e2d\u5982\u4f55\u5904\u7406\u5927\u6587\u4ef6\u7684\u884c\u6570\u7edf\u8ba1\uff1f<\/strong><br \/>\u5bf9\u4e8e\u8f83\u5927\u7684\u6587\u672c\u6587\u4ef6\uff0c\u9010\u884c\u8bfb\u53d6\u53ef\u4ee5\u6709\u6548\u8282\u7701\u5185\u5b58\u3002\u4f7f\u7528<code>file.readline()<\/code>\u65b9\u6cd5\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\uff0c\u540c\u65f6\u7d2f\u52a0\u884c\u6570\uff0c\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u6574\u4e2a\u6587\u4ef6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">line_count = 0\nwith open(&#39;largefile.txt&#39;, &#39;r&#39;) as file:\n    for line in file:\n        line_count += 1\nprint(f&#39;\u5927\u6587\u4ef6\u884c\u6570: {line_count}&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u5728\u5904\u7406\u5927\u6587\u4ef6\u65f6\u5c24\u4e3a\u6709\u6548\uff0c\u80fd\u591f\u4fdd\u6301\u7a0b\u5e8f\u7684\u9ad8\u6548\u548c\u7a33\u5b9a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5bf9\u6587\u672c\u8fdb\u884c\u5206\u884c\u8ba1\u6570\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u548c\u5e93\u51fd\u6570\u7b49\uff0c\u5176\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u6709 [&hellip;]","protected":false},"author":3,"featured_media":937784,"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\/937783"}],"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=937783"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937783\/revisions"}],"predecessor-version":[{"id":937785,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937783\/revisions\/937785"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/937784"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=937783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=937783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=937783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}