{"id":944654,"date":"2024-12-26T23:10:59","date_gmt":"2024-12-26T15:10:59","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/944654.html"},"modified":"2024-12-26T23:11:01","modified_gmt":"2024-12-26T15:11:01","slug":"%e5%a6%82%e4%bd%95%e6%9b%b4%e6%96%b0python-%e5%8c%b9%e9%85%8d","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/944654.html","title":{"rendered":"\u5982\u4f55\u66f4\u65b0python \u5339\u914d"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25081547\/f0b1a24a-e252-4a09-b18f-dc1332878379.webp\" alt=\"\u5982\u4f55\u66f4\u65b0python \u5339\u914d\" \/><\/p>\n<blockquote>\n<p><p>search(&quot;\u5982\u4f55\u66f4\u65b0python \u5339\u914d&quot;)<\/p>\n<\/p>\n<\/blockquote>\n<p><p>\u8981\u5728 Python \u4e2d\u66f4\u65b0\u5339\u914d\u7684\u5185\u5bb9\uff0c\u901a\u5e38\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5757 <code>re<\/code> \u63d0\u4f9b\u7684 <code>re.sub()<\/code> \u51fd\u6570\u3002<strong><code>re.sub()<\/code> \u51fd\u6570\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7b26\u5408\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u7684\u5b50\u4e32<\/strong>\uff0c<strong>\u53ef\u4ee5\u4e00\u6b21\u6027\u66ff\u6362\u6240\u6709\u5339\u914d\u9879<\/strong>\uff0c<strong>\u652f\u6301\u4f7f\u7528\u51fd\u6570\u52a8\u6001\u751f\u6210\u66ff\u6362\u5185\u5bb9<\/strong>\u3002\u4ee5\u4e0b\u662f <code>re.sub()<\/code> \u7684\u57fa\u672c\u7528\u6cd5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>result = re.sub(pattern, repl, string, count=0, flags=0)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ul>\n<li><code>pattern<\/code>\uff1a\u8981\u5339\u914d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u3002<\/li>\n<li><code>repl<\/code>\uff1a\u7528\u4e8e\u66ff\u6362\u7684\u5b57\u7b26\u4e32\u6216\u51fd\u6570\u3002<\/li>\n<li><code>string<\/code>\uff1a\u8981\u5904\u7406\u7684\u539f\u59cb\u5b57\u7b26\u4e32\u3002<\/li>\n<li><code>count<\/code>\uff1a\u6700\u591a\u66ff\u6362\u6b21\u6570\uff0c\u9ed8\u8ba4\u503c\u4e3a 0\uff0c\u8868\u793a\u66ff\u6362\u6240\u6709\u5339\u914d\u9879\u3002<\/li>\n<li><code>flags<\/code>\uff1a\u7528\u4e8e\u4fee\u6539\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u65b9\u5f0f\u7684\u6807\u5fd7\u4f4d\u3002<\/li>\n<\/ul>\n<p><p><strong>\u793a\u4f8b\uff1a\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u66ff\u6362\u4e3a\u5b57\u7b26 &#39;#&#39;<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>text = &quot;\u6211\u7684\u7535\u8bdd\u53f7\u7801\u662f\uff1a1234567890&quot;<\/p>\n<p>pattern = r&#39;\\d&#39;  # \u5339\u914d\u4efb\u610f\u6570\u5b57<\/p>\n<p>repl = &#39;#&#39;<\/p>\n<p>result = re.sub(pattern, repl, text)<\/p>\n<p>print(result)  # \u8f93\u51fa\uff1a\u6211\u7684\u7535\u8bdd\u53f7\u7801\u662f\uff1a##########<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c<code>\\d<\/code> \u662f\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u8868\u793a\u5339\u914d\u4efb\u610f\u6570\u5b57\u5b57\u7b26\u3002<code>re.sub()<\/code> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32 <code>text<\/code> \u4e2d\u6240\u6709\u5339\u914d <code>\\d<\/code> \u7684\u5b57\u7b26\u66ff\u6362\u4e3a <code>#<\/code>\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528\u51fd\u6570\u52a8\u6001\u751f\u6210\u66ff\u6362\u5185\u5bb9<\/strong><\/p>\n<\/p>\n<p><p>\u6709\u65f6\uff0c\u66ff\u6362\u7684\u5185\u5bb9\u9700\u8981\u6839\u636e\u5339\u914d\u7684\u5185\u5bb9\u52a8\u6001\u751f\u6210\u3002\u6b64\u65f6\uff0c\u53ef\u4ee5\u5c06 <code>repl<\/code> \u53c2\u6570\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u5339\u914d\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u66ff\u6362\u540e\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><p><strong>\u793a\u4f8b\uff1a\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u52a0 1<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>def add_one(match):<\/p>\n<p>    value = int(match.group())<\/p>\n<p>    return str(value + 1)<\/p>\n<p>text = &quot;\u6211\u6709 2 \u4e2a\u82f9\u679c\u548c 3 \u4e2a\u6a59\u5b50\u3002&quot;<\/p>\n<p>pattern = r&#39;\\d+&#39;<\/p>\n<p>result = re.sub(pattern, add_one, text)<\/p>\n<p>print(result)  # \u8f93\u51fa\uff1a\u6211\u6709 3 \u4e2a\u82f9\u679c\u548c 4 \u4e2a\u6a59\u5b50\u3002<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>add_one<\/code> \u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u5339\u914d\u5bf9\u8c61\uff0c\u5c06\u5339\u914d\u7684\u6570\u5b57\u8f6c\u6362\u4e3a\u6574\u6570\uff0c\u52a0 1 \u540e\u518d\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u4f5c\u4e3a\u66ff\u6362\u5185\u5bb9\u3002<code>re.sub()<\/code> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32 <code>text<\/code> \u4e2d\u6240\u6709\u5339\u914d <code>\\d+<\/code> \u7684\u5b50\u4e32\u66ff\u6362\u4e3a <code>add_one<\/code> \u51fd\u6570\u7684\u8fd4\u56de\u503c\u3002<\/p>\n<\/p>\n<p><p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u4f7f\u7528\u539f\u59cb\u5b57\u7b26\u4e32\uff08\u5373\u4ee5 <code>r<\/code> \u4e3a\u524d\u7f00\u7684\u5b57\u7b26\u4e32\uff09\u5b9a\u4e49\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u53ef\u4ee5\u907f\u514d\u53cd\u659c\u6760\u8f6c\u4e49\u7684\u95ee\u9898\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u8fdb\u884c\u591a\u884c\u5339\u914d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>re.S<\/code> \u6807\u5fd7\uff0c\u4f7f <code>.<\/code> \u5339\u914d\u5305\u62ec\u6362\u884c\u7b26\u5728\u5185\u7684\u4efb\u610f\u5b57\u7b26\u3002<\/li>\n<li>\u5728\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u53cd\u5411\u5f15\u7528\uff0c\u5982 <code>\\1<\/code>\u3001<code>\\2<\/code>\uff0c\u8868\u793a\u5339\u914d\u6a21\u5f0f\u4e2d\u7b2c\u4e00\u4e2a\u3001\u7b2c\u4e8c\u4e2a\u62ec\u53f7\u5185\u7684\u5b50\u7ec4\u3002<\/li>\n<\/ul>\n<p><p>\u66f4\u591a\u5173\u4e8e <code>re.sub()<\/code> \u51fd\u6570\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<\/p>\n<\/p>\n<blockquote>\n<p><p>\ud83d\udcf0 <strong><a href=\"https:\/\/docs.python.org\/zh-cn\/3.13\/library\/re.html?utm_source=chatgpt.com\">re &#8212; \u6b63\u5219\u8868\u8fbe\u5f0f\u64cd\u4f5c\u2014 Python 3.13.1 \u6587\u6863<\/a><\/strong><\/p>\n<p>\u89e3\u51b3\u529e\u6cd5\u662f\u5bf9\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff08patte&#8230;<\/p>\n<p><em>\u6765\u6e90\uff1adocs.python.org<\/em>tion* <\/p>\n<\/p>\n<\/blockquote>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u68c0\u67e5\u6211\u5f53\u524d\u7684Python\u7248\u672c\u4ee5\u786e\u5b9a\u662f\u5426\u9700\u8981\u66f4\u65b0\uff1f<\/strong><br \/>\u8981\u68c0\u67e5\u60a8\u5f53\u524d\u5b89\u88c5\u7684Python\u7248\u672c\uff0c\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u6216\u7ec8\u7aef\u4e2d\u8f93\u5165 <code>python --version<\/code> \u6216 <code>python3 --version<\/code>\u3002\u8fd9\u5c06\u663e\u793a\u60a8\u6240\u4f7f\u7528\u7684Python\u7248\u672c\u53f7\u3002\u4e86\u89e3\u7248\u672c\u53f7\u540e\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95eePython\u7684\u5b98\u65b9\u7f51\u7ad9\uff0c\u67e5\u770b\u6700\u65b0\u7248\u672c\uff0c\u5e76\u51b3\u5b9a\u662f\u5426\u9700\u8981\u8fdb\u884c\u66f4\u65b0\u3002<\/p>\n<p><strong>\u5728Windows\u4e0a\u5982\u4f55\u66f4\u65b0Python\uff1f<\/strong><br \/>\u5728Windows\u7cfb\u7edf\u4e0a\u66f4\u65b0Python\u76f8\u5bf9\u7b80\u5355\u3002\u60a8\u53ef\u4ee5\u8bbf\u95eePython\u5b98\u65b9\u7f51\u7ad9\uff0c\u4e0b\u8f7d\u6700\u65b0\u7684\u5b89\u88c5\u7a0b\u5e8f\u3002\u8fd0\u884c\u4e0b\u8f7d\u7684\u5b89\u88c5\u7a0b\u5e8f\u65f6\uff0c\u9009\u62e9\u201c\u5347\u7ea7\u73b0\u5728\u201d\u9009\u9879\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fAnaconda\u6216\u5176\u4ed6\u5305\u7ba1\u7406\u5de5\u5177\uff0c\u60a8\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5176\u5185\u7f6e\u7684\u66f4\u65b0\u547d\u4ee4\u6765\u66f4\u65b0Python\u3002<\/p>\n<p><strong>\u66f4\u65b0Python\u540e\uff0c\u6211\u9700\u8981\u91cd\u65b0\u5b89\u88c5\u6211\u7684\u5e93\u548c\u4f9d\u8d56\u9879\u5417\uff1f<\/strong><br \/>\u66f4\u65b0Python\u53ef\u80fd\u4f1a\u5f71\u54cd\u60a8\u73b0\u6709\u7684\u5e93\u548c\u4f9d\u8d56\u9879\u3002\u5728\u66f4\u65b0\u540e\uff0c\u5efa\u8bae\u60a8\u4f7f\u7528 <code>pip list<\/code> \u547d\u4ee4\u68c0\u67e5\u5df2\u5b89\u88c5\u7684\u5e93\uff0c\u5e76\u786e\u8ba4\u5b83\u4eec\u4ecd\u7136\u517c\u5bb9\u65b0\u7684Python\u7248\u672c\u3002\u5982\u679c\u67d0\u4e9b\u5e93\u4e0d\u518d\u5de5\u4f5c\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>pip install --upgrade &lt;\u5e93\u540d&gt;<\/code> \u547d\u4ee4\u6765\u91cd\u65b0\u5b89\u88c5\u6216\u66f4\u65b0\u5b83\u4eec\uff0c\u4ee5\u786e\u4fdd\u5b83\u4eec\u4e0e\u65b0\u7248\u672c\u7684Python\u517c\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"search(&quot;\u5982\u4f55\u66f4\u65b0python \u5339\u914d&quot;) \u8981\u5728 Python \u4e2d\u66f4\u65b0\u5339\u914d\u7684\u5185\u5bb9\uff0c\u901a\u5e38 [&hellip;]","protected":false},"author":3,"featured_media":944660,"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\/944654"}],"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=944654"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/944654\/revisions"}],"predecessor-version":[{"id":944663,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/944654\/revisions\/944663"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/944660"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=944654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=944654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=944654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}