{"id":1088446,"date":"2025-01-08T13:44:18","date_gmt":"2025-01-08T05:44:18","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1088446.html"},"modified":"2025-01-08T13:44:20","modified_gmt":"2025-01-08T05:44:20","slug":"%e5%88%a9%e7%94%a8python%e5%a6%82%e4%bd%95%e8%bf%9b%e8%a1%8c%e6%96%87%e5%ad%97%e5%8c%b9%e9%85%8d-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1088446.html","title":{"rendered":"\u5229\u7528python\u5982\u4f55\u8fdb\u884c\u6587\u5b57\u5339\u914d"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24200914\/7cafee54-5364-4da1-af45-10aa5ee66d3a.webp\" alt=\"\u5229\u7528python\u5982\u4f55\u8fdb\u884c\u6587\u5b57\u5339\u914d\" \/><\/p>\n<p><p> <strong>\u5229\u7528Python\u8fdb\u884c\u6587\u5b57\u5339\u914d<\/strong>\uff0c\u53ef\u4ee5\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982difflib\u7b49\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002<strong>\u5b57\u7b26\u4e32\u65b9\u6cd5\u7b80\u5355\u6613\u7528\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u529f\u80fd\u5f3a\u5927\u3001difflib\u5e93\u9002\u7528\u4e8e\u76f8\u4f3c\u5ea6\u8ba1\u7b97<\/strong>\u3002\u63a5\u4e0b\u6765\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u7684\u4e00\u79cd\u65b9\u6cd5\u2014\u2014\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u5b83\u662f\u5904\u7406\u6587\u5b57\u5339\u914d\u7684\u5f3a\u5927\u5de5\u5177\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u57fa\u7840<\/p>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regular Expression\uff0c\u7b80\u79f0regex\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5339\u914d\u5b57\u7b26\u4e32\u7684\u6a21\u5f0f\u3002Python\u63d0\u4f9b\u4e86re\u6a21\u5757\u6765\u652f\u6301\u6b63\u5219\u8868\u8fbe\u5f0f\u64cd\u4f5c\u3002\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u590d\u6742\u7684\u6587\u5b57\u5339\u914d\u548c\u66ff\u6362\u4efb\u52a1\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u57fa\u672c\u4f7f\u7528<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u9996\u5148\u9700\u8981\u5bfc\u5165re\u6a21\u5757\u3002re\u6a21\u5757\u63d0\u4f9b\u4e86\u51e0\u4e2a\u5173\u952e\u51fd\u6570\uff1amatch\u3001search\u3001findall\u548csub\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<h2><strong>match\uff1a\u4ece\u5b57\u7b26\u4e32\u7684\u8d77\u59cb\u4f4d\u7f6e\u5f00\u59cb\u5339\u914d<\/strong><\/h2>\n<p>pattern = r&#39;\\d+&#39;  # \u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u5b57<\/p>\n<p>text = &#39;123abc456&#39;<\/p>\n<p>match_obj = re.match(pattern, text)<\/p>\n<p>if match_obj:<\/p>\n<p>    print(f&quot;Match found: {match_obj.group()}&quot;)<\/p>\n<h2><strong>search\uff1a\u626b\u63cf\u6574\u4e2a\u5b57\u7b26\u4e32\u5e76\u8fd4\u56de\u7b2c\u4e00\u4e2a\u6210\u529f\u7684\u5339\u914d<\/strong><\/h2>\n<p>search_obj = re.search(pattern, text)<\/p>\n<p>if search_obj:<\/p>\n<p>    print(f&quot;Search found: {search_obj.group()}&quot;)<\/p>\n<h2><strong>findall\uff1a\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u975e\u91cd\u53e0\u5339\u914d\u7684\u5217\u8868<\/strong><\/h2>\n<p>findall_obj = re.findall(pattern, text)<\/p>\n<p>print(f&quot;Findall found: {findall_obj}&quot;)<\/p>\n<h2><strong>sub\uff1a\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5339\u914d\u9879<\/strong><\/h2>\n<p>replaced_text = re.sub(pattern, &#39;#&#39;, text)<\/p>\n<p>print(f&quot;Sub result: {replaced_text}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2\u3001\u5143\u5b57\u7b26\u4e0e\u6a21\u5f0f<\/h3>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684\u5143\u5b57\u7b26\u53ef\u4ee5\u7528\u6765\u6784\u5efa\u590d\u6742\u7684\u5339\u914d\u6a21\u5f0f\u3002\u5e38\u7528\u7684\u5143\u5b57\u7b26\u5305\u62ec\uff1a<code>^<\/code>\u3001<code>$<\/code>\u3001<code>.<\/code>\u3001<code>*<\/code>\u3001<code>+<\/code>\u3001<code>?<\/code>\u3001<code>[]<\/code>\u3001<code>{}<\/code>\u3001<code>()<\/code>\u3001<code>|<\/code>\u3002<\/p>\n<\/p>\n<ul>\n<li><code>.<\/code>\uff1a\u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\uff08\u9664\u6362\u884c\u7b26\uff09<\/li>\n<li><code>^<\/code>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u59cb<\/li>\n<li><code>$<\/code>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u675f<\/li>\n<li><code>*<\/code>\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b260\u6b21\u6216\u591a\u6b21<\/li>\n<li><code>+<\/code>\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b261\u6b21\u6216\u591a\u6b21<\/li>\n<li><code>?<\/code>\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b260\u6b21\u62161\u6b21<\/li>\n<li><code>[]<\/code>\uff1a\u5339\u914d\u62ec\u53f7\u5185\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26<\/li>\n<li><code>{}<\/code>\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u7684\u6307\u5b9a\u6b21\u6570<\/li>\n<li><code>()<\/code>\uff1a\u5206\u7ec4\u5339\u914d<\/li>\n<li><code>|<\/code>\uff1a\u5339\u914d\u524d\u540e\u4efb\u610f\u4e00\u4e2a\u6a21\u5f0f<\/li>\n<\/ul>\n<p><pre><code class=\"language-python\">pattern = r&#39;^[a-zA-Z0-9_]+@[a-zA-Z]+\\.[a-zA-Z]{2,3}$&#39;<\/p>\n<p>em<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>l = &#39;example123@example.com&#39;<\/p>\n<p>if re.match(pattern, email):<\/p>\n<p>    print(&quot;Valid email address&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;Invalid email address&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3\u3001\u5206\u7ec4\u4e0e\u6355\u83b7<\/h3>\n<\/p>\n<p><p>\u4f7f\u7528\u62ec\u53f7<code>()<\/code>\u53ef\u4ee5\u5c06\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684\u4e00\u90e8\u5206\u62ec\u8d77\u6765\uff0c\u5f62\u6210\u4e00\u4e2a\u5206\u7ec4\u3002\u5206\u7ec4\u53ef\u4ee5\u901a\u8fc7\u7f16\u53f7\u6765\u5f15\u7528\uff0c\u7f16\u53f7\u4ece1\u5f00\u59cb\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">pattern = r&#39;(\\d{3})-(\\d{2})-(\\d{4})&#39;<\/p>\n<p>text = &#39;My number is 123-45-6789&#39;<\/p>\n<p>match_obj = re.search(pattern, text)<\/p>\n<p>if match_obj:<\/p>\n<p>    print(f&quot;Full match: {match_obj.group(0)}&quot;)<\/p>\n<p>    print(f&quot;Area code: {match_obj.group(1)}&quot;)<\/p>\n<p>    print(f&quot;Prefix: {match_obj.group(2)}&quot;)<\/p>\n<p>    print(f&quot;Line number: {match_obj.group(3)}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>4\u3001\u8d2a\u5a6a\u4e0e\u975e\u8d2a\u5a6a\u5339\u914d<\/h3>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u9ed8\u8ba4\u4e3a\u8d2a\u5a6a\u5339\u914d\uff0c\u5373\u5c3d\u53ef\u80fd\u591a\u5730\u5339\u914d\u5b57\u7b26\u3002\u901a\u8fc7\u5728\u91cf\u8bcd\u540e\u52a0\u4e0a<code>?<\/code>\u53ef\u4ee5\u5b9e\u73b0\u975e\u8d2a\u5a6a\u5339\u914d\uff0c\u5373\u5c3d\u53ef\u80fd\u5c11\u5730\u5339\u914d\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &#39;&lt;html&gt;&lt;head&gt;&lt;title&gt;Title&lt;\/title&gt;&#39;<\/p>\n<p>pattern_greedy = r&#39;&lt;.*&gt;&#39;<\/p>\n<p>pattern_non_greedy = r&#39;&lt;.*?&gt;&#39;<\/p>\n<p>match_greedy = re.search(pattern_greedy, text)<\/p>\n<p>match_non_greedy = re.search(pattern_non_greedy, text)<\/p>\n<p>print(f&quot;Greedy match: {match_greedy.group()}&quot;)<\/p>\n<p>print(f&quot;Non-greedy match: {match_non_greedy.group()}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e8c\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u5339\u914d<\/p>\n<\/p>\n<p><p>\u867d\u7136\u6b63\u5219\u8868\u8fbe\u5f0f\u975e\u5e38\u5f3a\u5927\uff0c\u4f46\u5bf9\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u6587\u5b57\u5339\u914d\u4efb\u52a1\uff0cPython\u5185\u7f6e\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\u4e5f\u662f\u5341\u5206\u6709\u7528\u7684\u3002<\/p>\n<\/p>\n<p><h3>1\u3001find\u548crfind<\/h3>\n<\/p>\n<p><p>find\u65b9\u6cd5\u8fd4\u56de\u5b50\u5b57\u7b26\u4e32\u5728\u5b57\u7b26\u4e32\u4e2d\u9996\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\uff0c\u5982\u679c\u672a\u627e\u5230\u5219\u8fd4\u56de-1\u3002rfind\u65b9\u6cd5\u5219\u8fd4\u56de\u5b50\u5b57\u7b26\u4e32\u6700\u540e\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &#39;hello world&#39;<\/p>\n<p>substring = &#39;o&#39;<\/p>\n<p>first_occurrence = text.find(substring)<\/p>\n<p>last_occurrence = text.rfind(substring)<\/p>\n<p>print(f&quot;First occurrence: {first_occurrence}&quot;)<\/p>\n<p>print(f&quot;Last occurrence: {last_occurrence}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2\u3001startswith\u548cendswith<\/h3>\n<\/p>\n<p><p>startswith\u65b9\u6cd5\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u5b50\u5b57\u7b26\u4e32\u5f00\u5934\uff0cendswith\u65b9\u6cd5\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u5b50\u5b57\u7b26\u4e32\u7ed3\u5c3e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &#39;hello world&#39;<\/p>\n<p>if text.startswith(&#39;hello&#39;):<\/p>\n<p>    print(&quot;The text starts with &#39;hello&#39;&quot;)<\/p>\n<p>if text.endswith(&#39;world&#39;):<\/p>\n<p>    print(&quot;The text ends with &#39;world&#39;&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3\u3001count<\/h3>\n<\/p>\n<p><p>count\u65b9\u6cd5\u8fd4\u56de\u5b50\u5b57\u7b26\u4e32\u5728\u5b57\u7b26\u4e32\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &#39;hello hello hello&#39;<\/p>\n<p>substring = &#39;hello&#39;<\/p>\n<p>count = text.count(substring)<\/p>\n<p>print(f&quot;The substring &#39;{substring}&#39; appears {count} times&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>4\u3001replace<\/h3>\n<\/p>\n<p><p>replace\u65b9\u6cd5\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">text = &#39;hello world&#39;<\/p>\n<p>new_text = text.replace(&#39;world&#39;, &#39;Python&#39;)<\/p>\n<p>print(f&quot;Replaced text: {new_text}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u3001difflib\u5e93\u5339\u914d<\/p>\n<\/p>\n<p><p>difflib\u5e93\u63d0\u4f9b\u4e86\u5f88\u591a\u5b9e\u7528\u7684\u5de5\u5177\u6765\u6bd4\u8f83\u5e8f\u5217\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3002\u5b83\u7684SequenceMatcher\u7c7b\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u76f8\u4f3c\u5ea6\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u8ba1\u7b97\u76f8\u4f3c\u5ea6<\/h3>\n<\/p>\n<p><p>SequenceMatcher\u7c7b\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u76f8\u4f3c\u5ea6\uff0c\u8fd4\u56de\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u6d6e\u70b9\u6570\uff0c\u8868\u793a\u76f8\u4f3c\u5ea6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from difflib import SequenceMatcher<\/p>\n<p>text1 = &#39;hello world&#39;<\/p>\n<p>text2 = &#39;hello Python&#39;<\/p>\n<p>similarity = SequenceMatcher(None, text1, text2).ratio()<\/p>\n<p>print(f&quot;Similarity: {similarity}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2\u3001\u83b7\u53d6\u76f8\u4f3c\u5ea6\u5339\u914d\u5757<\/h3>\n<\/p>\n<p><p>get_matching_blocks\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u4e09\u5143\u7ec4\u5217\u8868\uff0c\u8868\u793a\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e2d\u7684\u5339\u914d\u5757\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">matching_blocks = SequenceMatcher(None, text1, text2).get_matching_blocks()<\/p>\n<p>print(f&quot;Matching blocks: {matching_blocks}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3\u3001\u83b7\u53d6\u5dee\u5f02<\/h3>\n<\/p>\n<p><p>get_opcodes\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u64cd\u4f5c\u7801\u5217\u8868\uff0c\u8868\u793a\u5982\u4f55\u5c06text1\u8f6c\u6362\u4e3atext2\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">opcodes = SequenceMatcher(None, text1, text2).get_opcodes()<\/p>\n<p>for tag, i1, i2, j1, j2 in opcodes:<\/p>\n<p>    print(f&quot;{tag}: text1[{i1}:{i2}] -&gt; text2[{j1}:{j2}]&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001difflib\u5e93\uff0cPython\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6587\u5b57\u5339\u914d\u5de5\u5177\u3002<strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u9002\u7528\u4e8e\u590d\u6742\u7684\u5339\u914d\u4efb\u52a1\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u9002\u7528\u4e8e\u7b80\u5355\u7684\u5339\u914d\u4efb\u52a1\u3001difflib\u5e93\u9002\u7528\u4e8e\u76f8\u4f3c\u5ea6\u8ba1\u7b97<\/strong>\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5b8c\u6210\u6587\u5b57\u5339\u914d\u4efb\u52a1\u3002\u638c\u63e1\u8fd9\u4e9b\u5de5\u5177\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u5347\u6587\u672c\u5904\u7406\u7684\u80fd\u529b\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u4f7f\u7528Python\u8fdb\u884c\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5339\u914d\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u6700\u5e38\u89c1\u7684\u5b57\u7b26\u4e32\u5339\u914d\u65b9\u6cd5\u662f\u4f7f\u7528\u5185\u7f6e\u7684<code>in<\/code>\u8fd0\u7b97\u7b26\u548c<code>str.find()<\/code>\u65b9\u6cd5\u3002<code>in<\/code>\u8fd0\u7b97\u7b26\u53ef\u4ee5\u68c0\u67e5\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u800c<code>str.find()<\/code>\u65b9\u6cd5\u5219\u8fd4\u56de\u5b50\u5b57\u7b26\u4e32\u7684\u8d77\u59cb\u7d22\u5f15\uff0c\u5982\u679c\u672a\u627e\u5230\u5219\u8fd4\u56de-1\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">text = &quot;Hello, welcome to Python programming.&quot;\nif &quot;Python&quot; in text:\n    print(&quot;Found &#39;Python&#39; in the text!&quot;)\n<\/code><\/pre>\n<p><strong>Python\u6709\u54ea\u4e9b\u5e93\u53ef\u4ee5\u589e\u5f3a\u6587\u5b57\u5339\u914d\u7684\u529f\u80fd\uff1f<\/strong><br \/>Python\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5f3a\u5927\u7684\u5e93\u6765\u589e\u5f3a\u6587\u5b57\u5339\u914d\u529f\u80fd\u3002<code>re<\/code>\u5e93\u7528\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\uff0c\u53ef\u4ee5\u5904\u7406\u590d\u6742\u7684\u6a21\u5f0f\u5339\u914d\u9700\u6c42\u3002<code>fuzzywuzzy<\/code>\u5e93\u5219\u7528\u4e8e\u6a21\u7cca\u5339\u914d\uff0c\u9002\u5408\u5904\u7406\u62fc\u5199\u9519\u8bef\u6216\u8fd1\u4f3c\u5339\u914d\u7684\u573a\u666f\u3002\u8fd9\u4e9b\u5e93\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5728\u5904\u7406\u6587\u672c\u6570\u636e\u65f6\u66f4\u52a0\u7075\u6d3b\u548c\u9ad8\u6548\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u5927\u6587\u672c\u6587\u4ef6\u4e2d\u7684\u5339\u914d\u4efb\u52a1\uff1f<\/strong><br \/>\u5904\u7406\u5927\u6587\u672c\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u9010\u884c\u8bfb\u53d6\u7684\u65b9\u6cd5\u6765\u63d0\u9ad8\u6548\u7387\u3002\u4f7f\u7528<code>with open()<\/code>\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u540e\u88ab\u6b63\u786e\u5173\u95ed\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u6574\u4e2a\u6587\u4ef6\u5e26\u6765\u7684\u5185\u5b58\u95ee\u9898\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&quot;large_file.txt&quot;, &quot;r&quot;) as file:\n    for line in file:\n        if &quot;search_term&quot; in line:\n            print(&quot;Found in line:&quot;, line)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u8ba9\u4f60\u80fd\u591f\u9ad8\u6548\u5730\u641c\u7d22\u5e76\u5339\u914d\u5927\u6587\u672c\u6587\u4ef6\u4e2d\u7684\u7279\u5b9a\u5185\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5229\u7528Python\u8fdb\u884c\u6587\u5b57\u5339\u914d\uff0c\u53ef\u4ee5\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982difflib\u7b49\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002\u5b57\u7b26\u4e32 [&hellip;]","protected":false},"author":3,"featured_media":1088456,"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\/1088446"}],"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=1088446"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088446\/revisions"}],"predecessor-version":[{"id":1088459,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088446\/revisions\/1088459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1088456"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1088446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1088446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1088446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}