{"id":205260,"date":"2025-05-29T09:05:52","date_gmt":"2025-05-29T01:05:52","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205260\/"},"modified":"2025-05-29T09:05:52","modified_gmt":"2025-05-29T01:05:52","slug":"python-%e4%b8%ad-replace-%e5%92%8c-sub-%e6%9b%bf%e6%8d%a2%e5%a4%9a%e4%b8%aa%e8%bf%9e%e7%bb%ad%e6%8d%a2%e8%a1%8c%e7%ac%a6%e7%9a%84%e5%8c%ba%e5%88%ab%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205260\/","title":{"rendered":"Python \u4e2d replace \u548c sub \u66ff\u6362\u591a\u4e2a\u8fde\u7eed\u6362\u884c\u7b26\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python \u4e2d replace \u548c sub \u66ff\u6362\u591a\u4e2a\u8fde\u7eed\u6362\u884c\u7b26\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f <\/h1>\n<p>\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241127\/17326973216746dce9c4be9.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>python \u4e2d replace \u548c sub \u66ff\u6362\u591a\u4e2a\u8fde\u7eed\u6362\u884c\u7b26\u7684\u5dee\u5f02<\/strong><\/p>\n<p>\u5728 python \u4e2d\uff0creplace \u548c sub \u53ef\u4ee5\u7528\u4e8e\u5b57\u7b26\u4e32\u4e2d\u66ff\u6362\u6587\u672c\u3002\u7136\u800c\uff0c\u4e24\u4e2a\u51fd\u6570\u5728\u5904\u7406\u8fde\u7eed\u591a\u4e2a\u6362\u884c\u7b26\u65f6\u4f1a\u4ea7\u751f\u4e0d\u540c\u7684\u7ed3\u679c\u3002<\/p>\n<p><strong>replace<\/strong><\/p>\n<p>replace \u51fd\u6570\u67e5\u627e\u7b2c\u4e00\u4e2a\u5339\u914d\u7684\u5b50\u5b57\u7b26\u4e32\u5e76\u7528\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\u66ff\u6362\u5b83\u3002\u5f53\u591a\u4e2a\u8fde\u7eed\u6362\u884c\u7b26\u65f6\uff0creplace \u4f1a\u9010\u4e2a\u66ff\u6362\uff0c\u5bfc\u81f4\u66ff\u6362\u540e\u7684\u5b57\u7b26\u4e32\u4ecd\u5305\u542b\u591a\u4e2a\u6362\u884c\u7b26\u3002<\/p>\n<p><strong>sub<\/strong><\/p>\n<p>\u4e0e replace \u4e0d\u540c\uff0csub \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u67e5\u627e\u5339\u914d\u7684\u6587\u672c\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684 \u201c+\u201d \u8868\u793a\u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\uff0c\u56e0\u6b64 \u201cn+\u201d \u5339\u914d\u8fde\u7eed\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u6362\u884c\u7b26\u3002sub \u7528\u66ff\u6362\u5b57\u7b26\u4e32\u66ff\u6362\u6240\u6709\u5339\u914d\u7684\u6587\u672c\uff0c\u4e00\u6b21\u6027\u5220\u9664\u8fde\u7eed\u6362\u884c\u7b26\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u5c55\u793a\u4e86 replace \u548c sub \u4e4b\u95f4\u7684\u5dee\u5f02\uff1a<\/p>\n<pre>text = '\\n\\n'\n\nresult1 = text.replace(r'\\n+', '')\nprint(result1)  # '\\n\\n'\n\nimport re\nresult2 = re.sub(r'\\n+', '', text)\nprint(result2)  # ''<\/pre>\n<p>\u5728\u7b2c\u4e00\u4e2a\u793a\u4f8b\u4e2d\uff0creplace \u9010\u4e2a\u66ff\u6362\u6362\u884c\u7b26\uff0c\u56e0\u6b64\u66ff\u6362\u540e\u7684\u7ed3\u679c\u4ecd\u5305\u542b\u4e24\u4e2a\u6362\u884c\u7b26\u3002\u5728\u7b2c\u4e8c\u4e2a\u793a\u4f8b\u4e2d\uff0csub \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u6240\u6709\u8fde\u7eed\u6362\u884c\u7b26\u5e76\u7528\u7a7a\u5b57\u7b26\u4e32\u66ff\u6362\u5b83\u4eec\uff0c\u4ece\u800c\u5220\u9664\u4e86\u6240\u6709\u6362\u884c\u7b26\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aPython \u4e2d replace \u548c sub \u66ff\u6362\u591a\u4e2a\u8fde\u7eed\u6362\u884c\u7b26\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f \u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python \u4e2d replace&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205260","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205260","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205260"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205260\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}