{"id":204394,"date":"2025-05-29T09:45:37","date_gmt":"2025-05-29T01:45:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204394\/"},"modified":"2025-05-29T09:45:37","modified_gmt":"2025-05-29T01:45:37","slug":"python-%e4%b8%ad-count-%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e6%98%be%e7%a4%ba%e7%bb%9f%e8%ae%a1%e7%bb%93%e6%9e%9c%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204394\/","title":{"rendered":"Python \u4e2d count() \u51fd\u6570\u5982\u4f55\u663e\u793a\u7edf\u8ba1\u7ed3\u679c\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python \u4e2d count() \u51fd\u6570\u5982\u4f55\u663e\u793a\u7edf\u8ba1\u7ed3\u679c\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241106\/1730887609672b3fb9d690d.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>python \u4e2d count() \u51fd\u6570\u4f7f\u7528\u4e0a\u7684\u56f0\u60d1<\/strong><\/p>\n<p>\u4e00\u4f4d python \u521d\u5b66\u8005\u5728\u5b66\u4e60 count() \u51fd\u6570\u65f6\u9047\u5230\u4e86\u56f0\u6270\u3002\u4ee5\u4e0b\u662f\u4ed6\u63d0\u4f9b\u7684\u4ee3\u7801\u7247\u6bb5\uff1a<\/p>\n<pre>file_name = 'paper1.txt'\nwith open(file_name) as fn:\n    lines = fn.readlines()\nfor line in lines:\n    line.count('the')<\/pre>\n<p>\u4ee3\u7801\u5df2\u6b63\u786e\u6253\u5f00\u4e00\u4e2a\u540d\u4e3a &#8220;paper1.txt&#8221; \u7684\u6587\u4ef6\uff0c\u5e76\u8bfb\u53d6\u5176\u5185\u5bb9\u5230 lines \u5217\u8868\u4e2d\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8fed\u4ee3 lines \u5217\u8868\uff0ccount() \u51fd\u6570\u7528\u4e8e\u7edf\u8ba1\u8be5\u884c\u7684 &#8220;the&#8221; \u5b57\u7b26\u4e32\u51fa\u73b0\u6b21\u6570\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5f53\u6267\u884c\u4ee3\u7801\u65f6\uff0c\u7ec8\u7aef\u5e76\u4e0d\u4f1a\u663e\u793a\u4efb\u4f55\u8f93\u51fa\u3002\u8fd9\u662f\u4ec0\u4e48\u539f\u56e0\u5462\uff1f<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c<strong>count() \u51fd\u6570\u81ea\u8eab\u4e0d\u4f1a\u8f93\u51fa\u7ed3\u679c\u3002<\/strong>\u5b83\u4ec5\u4ec5\u8ba1\u7b97\u5e76\u8fd4\u56de\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u5728\u76ee\u6807\u5b57\u7b26\u4e32\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\u3002\u8981\u4f7f\u5176\u5728\u7ec8\u7aef\u4e2d\u663e\u793a\u7ed3\u679c\uff0c\u9700\u8981\u4f7f\u7528 print() \u51fd\u6570\uff1a<\/p>\n<pre>file_name = 'paper1.txt'\nwith open(file_name) as fn:\n    lines = fn.readlines()\nfor line in lines:\n    print(line.count('the'))<\/pre>\n<p>\u7f16\u8f91\u540e\u7684\u4ee3\u7801\u7247\u6bb5\u4f1a\u5728\u7ec8\u7aef\u4e2d\u8f93\u51fa\u6bcf\u4e00\u884c\u4e2d &#8220;the&#8221; \u5b57\u7b26\u4e32\u51fa\u73b0\u7684\u6b21\u6570\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aPython \u4e2d count() \u51fd\u6570\u5982\u4f55\u663e\u793a\u7edf\u8ba1\u7ed3\u679c\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python \u4e2d count()&#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-204394","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204394","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=204394"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204394\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}