{"id":189056,"date":"2024-11-12T04:12:24","date_gmt":"2024-11-11T20:12:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189056\/"},"modified":"2024-11-12T04:12:25","modified_gmt":"2024-11-11T20:12:25","slug":"%e6%8f%90%e5%8f%96%e6%8a%80%e5%b7%a7-%e5%be%9e%e7%b6%b2%e7%ab%99%e7%88%ac%e6%96%87%e6%9c%ac%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189056\/","title":{"rendered":"\u63d0\u53d6\u6280\u5de7 (\u5f9e\u7db2\u7ad9\u722c\u6587\u672c\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e6%8f%90%e5%8f%96%e6%8a%80%e5%b7%a7-%e5%be%9e%e7%b6%b2%e7%ab%99%e7%88%ac%e6%96%87%e6%9c%ac%e6%95%b8%e6%93%9a%e5%ba%ab-wDZZJnhdvM\">\u63d0\u53d6\u6280\u5de7 (\u5f9e\u7db2\u7ad9\u722c\u6587\u672c\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u5b57\u5316\u7684\u6642\u4ee3\uff0c\u6578\u64da\u7684\u50f9\u503c\u6108\u767c\u51f8\u986f\u3002\u7db2\u7ad9\u722c\u87f2\u6280\u8853\u4f5c\u70ba\u4e00\u7a2e\u81ea\u52d5\u5316\u7684\u6578\u64da\u63d0\u53d6\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5f9e\u5404\u7a2e\u7db2\u7ad9\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u6587\u672c\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u7db2\u7ad9\u722c\u87f2\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5e38\u7528\u6280\u8853\u53ca\u5176\u61c9\u7528\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u63d0\u53d6\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b6%b2%e7%ab%99%e7%88%ac%e8%9f%b2%ef%bc%9f-wDZZJnhdvM\">\u4ec0\u9ebc\u662f\u7db2\u7ad9\u722c\u87f2\uff1f<\/h2>\n<p>\u7db2\u7ad9\u722c\u87f2\uff08Web Crawler\uff09\u662f\u4e00\u7a2e\u81ea\u52d5\u5316\u7a0b\u5e8f\uff0c\u65e8\u5728\u700f\u89bd\u4e92\u806f\u7db2\u4e26\u63d0\u53d6\u7279\u5b9a\u7684\u6578\u64da\u3002\u9019\u4e9b\u722c\u87f2\u901a\u5e38\u6703\u9075\u5faa\u7db2\u7ad9\u7684\u7d50\u69cb\uff0c\u901a\u904eHTTP\u8acb\u6c42\u7372\u53d6\u7db2\u9801\u5167\u5bb9\uff0c\u7136\u5f8c\u89e3\u6790HTML\u4ee3\u78bc\u4ee5\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u7db2\u7ad9\u722c\u87f2\u7684\u61c9\u7528\u7bc4\u570d\u5ee3\u6cdb\uff0c\u5305\u62ec\u641c\u7d22\u5f15\u64ce\u7d22\u5f15\u3001\u6578\u64da\u5206\u6790\u3001\u7af6\u722d\u5c0d\u624b\u7814\u7a76\u7b49\u3002<\/p>\n<h2 id=\"%e7%b6%b2%e7%ab%99%e7%88%ac%e8%9f%b2%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-wDZZJnhdvM\">\u7db2\u7ad9\u722c\u87f2\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u7db2\u7ad9\u722c\u87f2\u7684\u5de5\u4f5c\u6d41\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u767c\u9001\u8acb\u6c42\uff1a<\/strong>\u722c\u87f2\u5411\u76ee\u6a19\u7db2\u7ad9\u767c\u9001HTTP\u8acb\u6c42\uff0c\u8acb\u6c42\u7279\u5b9a\u7684\u7db2\u9801\u3002<\/li>\n<li><strong>\u7372\u53d6\u97ff\u61c9\uff1a<\/strong>\u7db2\u7ad9\u8fd4\u56deHTML\u5167\u5bb9\uff0c\u722c\u87f2\u63a5\u6536\u9019\u4e9b\u6578\u64da\u3002<\/li>\n<li><strong>\u89e3\u6790\u6578\u64da\uff1a<\/strong>\u4f7f\u7528\u89e3\u6790\u5eab\uff08\u5982BeautifulSoup\u6216lxml\uff09\u4f86\u63d0\u53d6\u6240\u9700\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u5b58\u5132\u6578\u64da\uff1a<\/strong>\u5c07\u63d0\u53d6\u7684\u6578\u64da\u5b58\u5132\u5230\u6578\u64da\u5eab\u6216\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84%e7%88%ac%e8%9f%b2%e6%8a%80%e8%a1%93-wDZZJnhdvM\">\u5e38\u7528\u7684\u722c\u87f2\u6280\u8853<\/h2>\n<p>\u5728\u5be6\u969b\u64cd\u4f5c\u4e2d\uff0c\u6709\u5e7e\u7a2e\u5e38\u7528\u7684\u722c\u87f2\u6280\u8853\u548c\u5de5\u5177\uff1a<\/p>\n<h3 id=\"1-python%e8%88%87beautifulsoup-wDZZJnhdvM\">1. Python\u8207BeautifulSoup<\/h3>\n<p>Python\u662f\u4e00\u7a2e\u6d41\u884c\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u64c1\u6709\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002BeautifulSoup\u662f\u4e00\u500bPython\u5eab\uff0c\u5c08\u9580\u7528\u65bc\u89e3\u6790HTML\u548cXML\u6587\u6a94\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import requests\nfrom bs4 import BeautifulSoup\n\nurl = 'https:\/\/example.com'\nresponse = requests.get(url)\nsoup = BeautifulSoup(response.text, 'html.parser')\n\n# \u63d0\u53d6\u6240\u6709\u6a19\u984c\ntitles = soup.find_all('h1')\nfor title in titles:\n    print(title.text)\n<\/code><\/pre>\n<h3 id=\"2-scrapy%e6%a1%86%e6%9e%b6-wDZZJnhdvM\">2. Scrapy\u6846\u67b6<\/h3>\n<p>Scrapy\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u722c\u87f2\u6846\u67b6\uff0c\u9069\u5408\u65bc\u5927\u578b\u9805\u76ee\u3002\u5b83\u63d0\u4f9b\u4e86\u8a31\u591a\u5167\u5efa\u7684\u529f\u80fd\uff0c\u5982\u81ea\u52d5\u8655\u7406\u8acb\u6c42\u3001\u6578\u64da\u5b58\u5132\u7b49\u3002\u4f7f\u7528Scrapy\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u9032\u884c\u6578\u64da\u63d0\u53d6\u3002<\/p>\n<h3 id=\"3-selenium-wDZZJnhdvM\">3. 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