{"id":470946,"date":"2024-07-09T05:47:13","date_gmt":"2024-07-09T05:47:13","guid":{"rendered":"https:\/\/proxycompass.com\/?p=470946"},"modified":"2024-07-09T05:47:14","modified_gmt":"2024-07-09T05:47:14","slug":"what-is-web-scraping-and-how-it-works","status":"publish","type":"post","link":"https:\/\/proxycompass.com\/cn\/what-is-web-scraping-and-how-it-works\/","title":{"rendered":"\u4ec0\u4e48\u662f\u7f51\u9875\u6293\u53d6\u4ee5\u53ca\u5b83\u5982\u4f55\u5de5\u4f5c\uff1f"},"content":{"rendered":"

\u611f\u5230\u56f0\u60d1\u5e76\u60f3\u77e5\u9053\u7f51\u7edc\u6293\u53d6\u5230\u5e95\u662f\u4ec0\u4e48\u4ee5\u53ca\u5b83\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/p>\n\n\n\n

\u90a3\u4e48\u4f60\u6765\u5bf9\u5730\u65b9\u4e86\uff0c\u56e0\u4e3a\u6211\u4eec\u5c06\u4e3a\u4f60\u4ed8\u51fa\u4e00\u5207\u3002<\/p>\n\n\n\n

\u5728\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u4e4b\u524d\uff0c\u6211\u53ef\u4ee5\u544a\u8bc9\u4f60\u4e00\u4e2a\u7b80\u77ed\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n

\u7f51\u7edc\u6293\u53d6\u662f\u4ece\u7f51\u7ad9\u63d0\u53d6\u516c\u5f00\u6570\u636e\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n

\u52a0\u5165\u6211\u4eec\uff0c\u4e86\u89e3\u66f4\u591a\u5177\u4f53\u4fe1\u606f\u3001\u5de5\u4f5c\u539f\u7406\u4ee5\u53ca\u73b0\u6709\u7684\u6d41\u884c\u56fe\u4e66\u9986\u3002<\/p>\n\n\n\n

\u4ec0\u4e48\u662f\u7f51\u9875\u6293\u53d6\uff1f<\/h2>\n\n\n\n

\u57fa\u672c\u4e0a\uff0c\u7f51\u9875\u6293\u53d6\u662f\u4e00\u79cd\u5141\u8bb8\u60a8\u4ece\u7f51\u7ad9\u63d0\u53d6\u5927\u91cf\u6570\u636e\u7684\u8fc7\u7a0b\u3002\u4e3a\u6b64\uff0c\u5fc5\u987b\u4f7f\u7528 ParseHub \u4e4b\u7c7b\u7684\u201c\u7f51\u9875\u6293\u53d6\u5de5\u5177\u201d\uff0c\u6216\u8005\u5982\u679c\u60a8\u77e5\u9053\u5982\u4f55\u7f16\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f17\u591a\u5f00\u6e90\u5e93\u4e4b\u4e00\u3002<\/p>\n\n\n\n

\u7ecf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u7684\u8bbe\u7f6e\u548c\u8c03\u6574\uff08\u5982\u679c\u4f60\u662f\u65b0\u624b\uff0c\u8bf7\u575a\u6301\u4f7f\u7528 Python \u5e93\u6216\u65e0\u4ee3\u7801\u5de5\u5177\uff09\uff0c\u4f60\u7684\u65b0\u73a9\u5177\u5c06\u5f00\u59cb\u63a2\u7d22\u7f51\u7ad9\u4ee5\u627e\u5230\u6240\u9700\u7684\u6570\u636e\u5e76\u63d0\u53d6\u5b83\u3002\u7136\u540e\u5b83\u5c06\u88ab\u8f6c\u6362\u4e3a CSV \u7b49\u7279\u5b9a\u683c\u5f0f\uff0c\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u8bbf\u95ee\u3001\u68c0\u67e5\u548c\u7ba1\u7406\u6240\u6709\u5185\u5bb9\u3002<\/p>\n\n\n\n

\u90a3\u4e48\u7f51\u7edc\u722c\u866b\u5982\u4f55\u83b7\u53d6\u4ea7\u54c1\u6216\u8054\u7cfb\u4eba\u7684\u5177\u4f53\u6570\u636e\u5462\uff1f<\/p>\n\n\n\n

\u60a8\u53ef\u80fd\u60f3\u77e5\u9053\u8fd9\u4e00\u70b9\u2026\u2026<\/p>\n\n\n\n

\u5176\u5b9e\uff0c\u53ea\u8981\u5177\u5907\u4e00\u70b9 html \u6216 css \u77e5\u8bc6\uff0c\u5c31\u53ef\u4ee5\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u4f60\u53ea\u9700\u53f3\u952e\u5355\u51fb\u8981\u6293\u53d6\u7684\u9875\u9762\uff0c\u9009\u62e9\u201c\u68c0\u67e5\u5143\u7d20\u201d\uff0c\u7136\u540e\u786e\u5b9a\u6b63\u5728\u4f7f\u7528\u7684 ID \u6216\u7c7b\u3002<\/p>\n\n\n\n

\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 XPath \u6216\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/p>\n\n\n\n

\u4e0d\u662f\u7a0b\u5e8f\u5458\uff1f\u522b\u62c5\u5fc3\uff01<\/p>\n\n\n\n

\u8bb8\u591a\u7f51\u9875\u6293\u53d6\u5de5\u5177\u90fd\u63d0\u4f9b\u4e86\u7528\u6237\u53cb\u597d\u7684\u754c\u9762\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u9009\u62e9\u8981\u6293\u53d6\u7684\u5143\u7d20\u5e76\u6307\u5b9a\u8981\u63d0\u53d6\u7684\u6570\u636e\u3002\u5176\u4e2d\u4e00\u4e9b\u751a\u81f3\u5177\u6709\u5185\u7f6e\u529f\u80fd\uff0c\u53ef\u4ee5\u81ea\u52a8\u4e3a\u60a8\u8bc6\u522b\u6240\u6709\u5185\u5bb9\u3002<\/p>\n\n\n\n

\u7ee7\u7eed\u9605\u8bfb\uff0c\u5728\u4e0b\u4e00\u90e8\u5206\u4e2d\u6211\u4eec\u5c06\u66f4\u8be6\u7ec6\u5730\u8ba8\u8bba\u8fd9\u4e00\u70b9\u3002<\/p>\n\n\n\n

\u7f51\u9875\u6293\u53d6\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/h2>\n\n\n\n

\u5047\u8bbe\u4f60\u9700\u8981\u4ece\u67d0\u4e2a\u7f51\u7ad9\u6536\u96c6\u6570\u636e\uff0c\u4f46\u9010\u4e2a\u8f93\u5165\u6570\u636e\u4f1a\u8017\u8d39\u5927\u91cf\u65f6\u95f4\u3002\u8fd9\u65f6\uff0c\u7f51\u9875\u6293\u53d6\u5c31\u6d3e\u4e0a\u7528\u573a\u4e86\u3002<\/p>\n\n\n\n

\u8fd9\u5c31\u50cf\u62e5\u6709\u4e00\u4e2a\u5c0f\u673a\u5668\u4eba\uff0c\u53ef\u4ee5\u8f7b\u677e\u4ece\u7f51\u7ad9\u83b7\u53d6\u60a8\u60f3\u8981\u7684\u7279\u5b9a\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u6b64\u8fc7\u7a0b\u7684\u4e00\u822c\u5de5\u4f5c\u539f\u7406\uff1a<\/p>\n\n\n\n

    \n
  1. \u5411\u76ee\u6807\u7f51\u7ad9\u53d1\u9001 HTTP \u8bf7\u6c42\uff1a<\/strong> \u8fd9\u662f\u4e00\u5207\u53d1\u5c55\u7684\u57fa\u7840\u3002HTTP \u8bf7\u6c42\u4f7f\u7f51\u7edc\u6293\u53d6\u5de5\u5177\u80fd\u591f\u5411\u6258\u7ba1\u76f8\u5173\u7f51\u7ad9\u7684\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u3002\u5f53\u7528\u6237\u8f93\u5165 URL \u6216\u5355\u51fb\u94fe\u63a5\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002\u8bf7\u6c42\u5305\u542b\u60a8\u6240\u4f7f\u7528\u7684\u8bbe\u5907\u548c\u6d4f\u89c8\u5668\u7684\u8be6\u7ec6\u4fe1\u606f\u3002
    <\/li>\n\n\n\n
  2. \u89e3\u6790 HTML \u6e90\u4ee3\u7801\uff1a <\/strong>\u670d\u52a1\u5668\u8fd4\u56de\u7f51\u9875\u7684 HTML \u4ee3\u7801\uff0c\u5305\u62ec\u9875\u9762\u7ed3\u6784\u548c\u9875\u9762\u5185\u5bb9\uff08\u5305\u62ec\u6587\u672c\u3001\u56fe\u50cf\u3001\u94fe\u63a5\u7b49\uff09\u3002\u7f51\u7edc\u722c\u866b\u4f7f\u7528\u8bf8\u5982 BeautifulSoup\uff08\u5982\u679c\u4f7f\u7528 Python\uff09\u6216 DOMParser\uff08\u5982\u679c\u4f7f\u7528 JavaScript\uff09\u4e4b\u7c7b\u7684\u5e93\u6765\u5904\u7406\u6b64\u4ee3\u7801\u3002\u8fd9\u6709\u52a9\u4e8e\u8bc6\u522b\u5305\u542b\u611f\u5174\u8da3\u503c\u7684\u5fc5\u9700\u5143\u7d20\u3002
    <\/li>\n\n\n\n
  3. \u6570\u636e\u63d0\u53d6\uff1a<\/strong> \u8bc6\u522b\u5143\u7d20\u540e\uff0c\u7f51\u7edc\u6293\u53d6\u5de5\u5177\u4f1a\u6355\u83b7\u6240\u9700\u6570\u636e\u3002\u8fd9\u5305\u62ec\u904d\u5386 HTML \u7ed3\u6784\u3001\u9009\u62e9\u67d0\u4e9b\u6807\u7b7e\u6216\u5c5e\u6027\uff0c\u7136\u540e\u4ece\u8fd9\u4e9b\u6807\u7b7e\/\u5c5e\u6027\u4e2d\u83b7\u53d6\u6587\u672c\u6216\u5176\u4ed6\u6570\u636e\u3002
    <\/li>\n\n\n\n
  4. \u6570\u636e\u8f6c\u6362\uff1a <\/strong>\u63d0\u53d6\u7684\u6570\u636e\u53ef\u80fd\u91c7\u7528\u67d0\u79cd\u4e0d\u53d7\u6b22\u8fce\u7684\u683c\u5f0f\u3002\u8fd9\u4e9b Web \u6570\u636e\u7ecf\u8fc7\u6e05\u7406\u548c\u89c4\u8303\u5316\uff0c\u7136\u540e\u8f6c\u6362\u4e3a CSV \u6587\u4ef6\u3001JSON \u5bf9\u8c61\u6216\u6570\u636e\u5e93\u4e2d\u7684\u8bb0\u5f55\u7b49\u683c\u5f0f\u3002\u8fd9\u53ef\u80fd\u610f\u5473\u7740\u5220\u9664\u4e00\u4e9b\u4e0d\u9700\u8981\u7684\u5b57\u7b26\u3001\u66f4\u6539\u6570\u636e\u7c7b\u578b\u6216\u5c06\u5176\u653e\u5165\u8868\u683c\u5f62\u5f0f\u3002
    <\/li>\n\n\n\n
  5. \u6570\u636e\u5b58\u50a8\uff1a<\/strong> \u5728\u5b58\u50a8\u4e4b\u524d\uff0c\u6570\u636e\u4f1a\u88ab\u6e05\u7406\u548c\u7ed3\u6784\u5316\uff0c\u4ee5\u4f9b\u5c06\u6765\u5206\u6790\u6216\u4f7f\u7528\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u4f8b\u5982\uff0c\u5c06\u5176\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3001\u6570\u636e\u5e93\u4e2d\u6216\u53d1\u9001\u5230 API\u3002
    <\/li>\n\n\n\n
  6. \u5bf9\u591a\u9875\u91cd\u590d\uff1a <\/strong>\u5982\u679c\u60a8\u8981\u6c42\u6293\u53d6\u5de5\u5177\u4ece\u591a\u4e2a\u9875\u9762\u6536\u96c6\u6570\u636e\uff0c\u5b83\u5c06\u5bf9\u6bcf\u4e2a\u9875\u9762\u91cd\u590d\u6b65\u9aa4 1-5\uff0c\u901a\u8fc7\u94fe\u63a5\u5bfc\u822a\u6216\u4f7f\u7528\u5206\u9875\u3002\u5176\u4e2d\u4e00\u4e9b\uff08\u4e0d\u662f\u5168\u90e8\uff01\uff09\u751a\u81f3\u53ef\u4ee5\u5904\u7406\u52a8\u6001\u5185\u5bb9\u6216 JavaScript \u5448\u73b0\u7684\u9875\u9762\u3002
    <\/li>\n\n\n\n
  7. \u540e\u671f\u5904\u7406\uff08\u53ef\u9009\uff09\uff1a<\/strong> \u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u540e\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u8fc7\u6ee4\u3001\u6e05\u7406\u6216\u91cd\u590d\u6570\u636e\u5220\u9664\uff0c\u4ee5\u4fbf\u4ece\u63d0\u53d6\u7684\u4fe1\u606f\u4e2d\u83b7\u5f97\u89c1\u89e3\u3002<\/li>\n<\/ol>\n\n\n\n

    \u7f51\u9875\u6293\u53d6\u7684\u5e94\u7528<\/h2>\n\n\n\n

    \u7535\u5b50\u5546\u52a1\u4ef7\u683c\u76d1\u63a7\u548c\u7ade\u4e89\u5bf9\u624b\u5206\u6790<\/h3>\n\n\n\n

    \u5982\u679c\u60a8\u6709\u7535\u5b50\u5546\u52a1\u4e1a\u52a1\uff0c\u90a3\u4e48\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7f51\u7edc\u6293\u53d6\u53ef\u80fd\u4f1a\u5bf9\u60a8\u6709\u76ca\u3002<\/p>\n\n\n\n

    \u8fd9\u662f\u6b63\u786e\u7684\u3002<\/p>\n\n\n\n

    \u501f\u52a9\u6b64\u5de5\u5177\uff0c\u60a8\u53ef\u4ee5\u6301\u7eed\u76d1\u63a7\u4ef7\u683c\uff0c\u5e76\u8ddf\u8e2a\u4ea7\u54c1\u4f9b\u5e94\u60c5\u51b5\u548c\u7ade\u4e89\u5bf9\u624b\u63d0\u4f9b\u7684\u4fc3\u9500\u6d3b\u52a8\u3002\u60a8\u8fd8\u53ef\u4ee5\u5229\u7528\u901a\u8fc7\u7f51\u9875\u6293\u53d6\u63d0\u53d6\u7684\u6570\u636e\u6765\u8ddf\u8e2a\u8d8b\u52bf\uff0c\u5e76\u53d1\u73b0\u65b0\u7684\u5e02\u573a\u673a\u4f1a\u3002<\/p>\n\n\n\n

    \u9500\u552e\u7ebf\u7d22\u751f\u6210\u548c\u9500\u552e\u60c5\u62a5<\/h3>\n\n\n\n

    \u60a8\u662f\u5426\u60f3\u5efa\u7acb\u4e00\u4e2a\u6f5c\u5728\u5ba2\u6237\u540d\u5355\uff0c\u4f46\u4e00\u60f3\u5230\u5b8c\u6210\u8fd9\u9879\u4efb\u52a1\u9700\u8981\u82b1\u8d39\u5927\u91cf\u65f6\u95f4\u5c31\u6df1\u611f\u53f9\u606f\uff1f\u60a8\u53ef\u4ee5\u8ba9\u7f51\u9875\u6293\u53d6\u529f\u80fd\u5feb\u901f\u4e3a\u60a8\u5b8c\u6210\u8fd9\u9879\u4efb\u52a1\u3002<\/p>\n\n\n\n

    \u60a8\u53ea\u9700\u7f16\u5199\u6b64\u5de5\u5177\u6765\u626b\u63cf\u5927\u91cf\u7f51\u7ad9\u5e76\u63d0\u53d6\u5ba2\u6237\u5217\u8868\u611f\u5174\u8da3\u7684\u6240\u6709\u6570\u636e\uff0c\u4f8b\u5982\u8054\u7cfb\u4fe1\u606f\u548c\u516c\u53f8\u8be6\u7ec6\u4fe1\u606f\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u7f51\u9875\u6293\u53d6\uff0c\u60a8\u53ef\u4ee5\u83b7\u5f97\u5927\u91cf\u6570\u636e\u8fdb\u884c\u5206\u6790\uff0c\u66f4\u597d\u5730\u786e\u5b9a\u60a8\u7684\u9500\u552e\u76ee\u6807\u5e76\u83b7\u5f97\u60a8\u975e\u5e38\u60f3\u8981\u7684\u6f5c\u5728\u5ba2\u6237\u3002<\/p>\n\n\n\n

    \u623f\u5730\u4ea7\u6e05\u5355\u548c\u5e02\u573a\u7814\u7a76<\/h3>\n\n\n\n

    \u623f\u5730\u4ea7\u662f\u53e6\u4e00\u4e2a\u53ef\u4ee5\u5145\u5206\u53d1\u6325\u7f51\u9875\u6293\u53d6\u4f18\u52bf\u7684\u573a\u666f\u3002\u501f\u52a9\u6b64\u5de5\u5177\uff0c\u53ef\u4ee5\u63a2\u7d22\u5927\u91cf\u4e0e\u623f\u5730\u4ea7\u76f8\u5173\u7684\u7f51\u7ad9\uff0c\u4ee5\u751f\u6210\u623f\u4ea7\u5217\u8868\u3002<\/p>\n\n\n\n

    \u8fd9\u4e9b\u6570\u636e\u53ef\u7528\u4e8e\u8ddf\u8e2a\u5e02\u573a\u8d8b\u52bf\uff08\u7814\u7a76\u4e70\u5bb6\u504f\u597d\uff09\u5e76\u8bc6\u522b\u54ea\u4e9b\u623f\u4ea7\u88ab\u4f4e\u4f30\u3002\u5206\u6790\u8fd9\u4e9b\u6570\u636e\u8fd8\u53ef\u4ee5\u5bf9\u8be5\u884c\u4e1a\u7684\u6295\u8d44\u548c\u5f00\u53d1\u51b3\u7b56\u8d77\u5230\u51b3\u5b9a\u6027\u4f5c\u7528\u3002<\/p>\n\n\n\n

    \u793e\u4ea4\u5a92\u4f53\u60c5\u7eea\u5206\u6790<\/h3>\n\n\n\n

    \u5982\u679c\u60a8\u5e0c\u671b\u4e86\u89e3\u6d88\u8d39\u8005\u5bf9\u67d0\u4e9b\u54c1\u724c\u3001\u4ea7\u54c1\u7684\u60c5\u7eea\uff0c\u6216\u8005\u53ea\u662f\u4e86\u89e3\u793e\u4ea4\u7f51\u7edc\u4e2d\u7279\u5b9a\u9886\u57df\u7684\u8d8b\u52bf\uff0c\u90a3\u4e48\u6700\u597d\u7684\u65b9\u6cd5\u5c31\u662f\u4f7f\u7528\u7f51\u7edc\u6293\u53d6\u3002<\/p>\n\n\n\n

    \u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u8bf7\u8ba9\u60a8\u7684\u6293\u53d6\u5de5\u5177\u5f00\u59cb\u6536\u96c6\u5e16\u5b50\u3001\u8bc4\u8bba\u548c\u8bc4\u4ef7\u3002\u4ece\u793e\u4ea4\u7f51\u7edc\u4e2d\u63d0\u53d6\u7684\u6570\u636e\u53ef\u4ee5\u4e0e NLP \u6216 AI \u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u5236\u5b9a\u8425\u9500\u7b56\u7565\u5e76\u68c0\u67e5\u54c1\u724c\u58f0\u8a89\u3002<\/p>\n\n\n\n

    \u5b66\u672f\u548c\u79d1\u5b66\u7814\u7a76<\/h3>\n\n\n\n

    \u6beb\u65e0\u7591\u95ee\uff0c\u7ecf\u6d4e\u5b66\u3001\u793e\u4f1a\u5b66\u548c\u8ba1\u7b97\u673a\u79d1\u5b66\u662f\u4ece\u7f51\u7edc\u6293\u53d6\u4e2d\u53d7\u76ca\u6700\u591a\u7684\u9886\u57df\u3002<\/p>\n\n\n\n

    \u4f5c\u4e3a\u8fd9\u4e9b\u9886\u57df\u7684\u7814\u7a76\u4eba\u5458\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6b64\u5de5\u5177\u83b7\u5f97\u7684\u6570\u636e\u6765\u7814\u7a76\u5b83\u4eec\u6216\u8fdb\u884c\u4e66\u76ee\u8bc4\u8bba\u3002\u60a8\u8fd8\u53ef\u4ee5\u751f\u6210\u5927\u89c4\u6a21\u6570\u636e\u96c6\u6765\u521b\u5efa\u4e13\u6ce8\u4e8e\u673a\u5668\u5b66\u4e60\u7684\u7edf\u8ba1\u6a21\u578b\u548c\u9879\u76ee\u3002<\/p>\n\n\n\n

    \u9876\u7ea7\u7f51\u9875\u6293\u53d6\u5de5\u5177\u548c\u5e93<\/h2>\n\n\n\n

    Python<\/h3>\n\n\n\n

    \u5982\u679c\u60a8\u51b3\u5b9a\u8fdb\u884c\u7f51\u7edc\u6293\u53d6\u9879\u76ee\uff0c\u90a3\u4e48\u9009\u62e9 Python \u51c6\u6ca1\u9519\uff01<\/p>\n\n\n\n

      \n
    1. BeautifulSoup\uff1a<\/strong> \u8be5\u5e93\u8d1f\u8d23\u89e3\u6790HTML\u548cXML\u6587\u6863\uff0c\u5e76\u517c\u5bb9\u4e0d\u540c\u7684\u89e3\u6790\u5668\u3002<\/li>\n\n\n\n
    2. Scrapy\u7684\uff1a<\/strong> \u4e00\u4e2a\u5f3a\u5927\u800c\u5feb\u901f\u7684\u7f51\u9875\u6293\u53d6\u6846\u67b6\u3002\u5b83\u5177\u6709\u9ad8\u7ea7 API\uff0c\u53ef\u7528\u4e8e\u6570\u636e\u63d0\u53d6\u3002<\/li>\n\n\n\n
    3. \u7852\uff1a <\/strong>\u6b64\u5de5\u5177\u80fd\u591f\u5904\u7406\u6e90\u4ee3\u7801\u4e2d\u6709\u5927\u91cf JavaScript \u8d1f\u8f7d\u7684\u7f51\u7ad9\u3002\u5b83\u8fd8\u53ef\u7528\u4e8e\u6293\u53d6\u52a8\u6001\u5185\u5bb9\u3002<\/li>\n\n\n\n
    4. \u8981\u6c42\uff1a<\/strong> \u901a\u8fc7\u8fd9\u4e2a\u5e93\u60a8\u53ef\u4ee5\u5728\u4e00\u4e2a\u7b80\u5355\u800c\u4f18\u96c5\u7684\u754c\u9762\u4e2d\u53d1\u51fa HTTP \u8bf7\u6c42\u3002<\/li>\n\n\n\n
    5. \u7f51\u5740\u5e93\uff1a<\/strong> \u6253\u5f00\u5e76\u8bfb\u53d6 URL\u3002\u4e0e Requests \u7c7b\u4f3c\uff0c\u5b83\u6709\u4e00\u4e2a\u754c\u9762\uff0c\u4f46\u7ea7\u522b\u8f83\u4f4e\uff0c\u56e0\u6b64\u60a8\u53ea\u80fd\u5c06\u5176\u7528\u4e8e\u57fa\u672c\u7684\u7f51\u9875\u6293\u53d6\u4efb\u52a1\u3002<\/li>\n<\/ol>\n\n\n\n

      JavaScript<\/h3>\n\n\n\n

      JavaScript \u662f\u7f51\u7edc\u6293\u53d6\u7684\u7b2c\u4e8c\u5f3a\u6709\u529b\u7ade\u4e89\u8005\uff0c\u5c24\u5176\u662f\u4f7f\u7528 Playwright \u65f6\u3002<\/p>\n\n\n\n

        \n
      1. \u6728\u5076\u5e08\uff1a <\/strong>\u5f97\u76ca\u4e8e\u8fd9\u4e2a\u914d\u5907\u4e86\u9ad8\u7ea7 API \u7684 Node.js \u5e93\uff0c\u60a8\u53ef\u4ee5\u6709\u673a\u4f1a\u7ba1\u7406\u65e0\u5934\u7248\u672c\u7684 Chrome \u6216 Chromium \u6d4f\u89c8\u5668\u4ee5\u8fdb\u884c\u7f51\u9875\u6293\u53d6\u3002
        <\/li>\n\n\n\n
      2. \u518d\u89c1\uff1a <\/strong>\u4e0e jQuery \u7c7b\u4f3c\uff0c\u6b64\u5e93\u53ef\u8ba9\u60a8\u89e3\u6790\u548c\u64cd\u4f5c HTML\u3002\u4e3a\u6b64\uff0c\u5b83\u5177\u6709\u6613\u4e8e\u719f\u6089\u7684\u8bed\u6cd5\u3002
        <\/li>\n\n\n\n
      3. Axios\uff1a<\/strong> \u8fd9\u4e2a\u6d41\u884c\u7684\u5e93\u4e3a\u60a8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u7684 API \u6765\u6267\u884c HTTP \u8bf7\u6c42\u3002\u5b83\u4e5f\u53ef\u4ee5\u7528\u4f5c Node.js \u5185\u7f6e HTTP \u6a21\u5757\u7684\u66ff\u4ee3\u54c1\u3002
        <\/li>\n\n\n\n
      4. \u5267\u4f5c\u5bb6\uff1a<\/strong> \u4e0e Puppeteer \u7c7b\u4f3c\uff0c\u5b83\u662f\u4e00\u4e2a Node.js \u5e93\uff0c\u4f46\u66f4\u65b0\u66f4\u597d\u3002\u5b83\u7531 Microsoft \u5f00\u53d1\uff0c\u4e0e Windows 11 \u6216 Edge \u6d4f\u89c8\u5668\u4e0d\u540c\uff0c\u5b83\u5e76\u4e0d\u7cdf\u7cd5\uff01\u63d0\u4f9b\u8de8\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\u548c\u81ea\u52a8\u7b49\u5f85\u7b49\u529f\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n

        \u7ea2\u5b9d\u77f3<\/h3>\n\n\n\n

        \u6211\u8fd9\u8f88\u5b50\u4ece\u6765\u6ca1\u6709\u63a5\u89e6\u8fc7\u4e00\u884c Ruby \u4ee3\u7801\uff0c\u4f46\u5728\u4e3a\u8fd9\u7bc7\u6587\u7ae0\u505a\u7814\u7a76\u65f6\uff0c\u6211\u770b\u5230 Reddit \u4e0a\u7684\u4e00\u4e9b\u7528\u6237\u53d1\u8a93 Ruby \u6bd4 Python \u66f4\u9002\u5408\u6293\u53d6\u6570\u636e\u3002\u522b\u95ee\u6211\u4e3a\u4ec0\u4e48\u3002<\/p>\n\n\n\n

          \n
        1. \u673a\u68b0\u5316\uff1a<\/strong> \u9664\u4e86\u63d0\u53d6\u6570\u636e\u4e4b\u5916\uff0c\u8fd9\u4e2a Ruby \u5e93\u8fd8\u53ef\u4ee5\u7528\u4e8e\u586b\u5199\u8868\u5355\u548c\u70b9\u51fb\u94fe\u63a5\u3002\u5b83\u8fd8\u53ef\u4ee5\u7528\u4e8e JavaScript \u9875\u9762\u7ba1\u7406\u548c\u8eab\u4efd\u9a8c\u8bc1\u3002
          <\/li>\n\n\n\n
        2. \u952f\u5207\uff1a <\/strong>\u4e00\u4e2a\u80fd\u591f\u5904\u7406 HTML \u548c XML \u6e90\u4ee3\u7801\u7684\u5e93\u3002\u5b83\u652f\u6301 XPath \u548c CSS \u9009\u62e9\u5668\u3002
          <\/li>\n\n\n\n
        3. HTTParty\uff1a <\/strong>\u5177\u6709\u76f4\u89c2\u7684\u754c\u9762\uff0c\u53ef\u4ee5\u8ba9\u60a8\u66f4\u8f7b\u677e\u5730\u5411\u670d\u52a1\u5668\u53d1\u51fa HTTP \u8bf7\u6c42\uff0c\u56e0\u6b64\u5b83\u53ef\u4ee5\u7528\u4f5c\u7f51\u7edc\u6293\u53d6\u9879\u76ee\u7684\u57fa\u7840\u3002
          <\/li>\n\n\n\n
        4. \u6728\u6751\u4e95\uff1a <\/strong>\u5b83\u57fa\u4e8e Mechanize \u548c Nokogiri \u6784\u5efa\u3002\u5b83\u5177\u6709\u66f4\u597d\u7684\u7ed3\u6784\uff0c\u53ef\u4ee5\u5904\u7406\u6293\u53d6\u591a\u4e2a\u9875\u9762\u3001\u7ba1\u7406 cookie \u548c\u5904\u7406 JavaScript \u7b49\u4efb\u52a1\u3002
          <\/li>\n\n\n\n
        5. \u888b\u718a\uff1a<\/strong> \u4e13\u4e3a\u7f51\u9875\u6293\u53d6\u800c\u8bbe\u8ba1\u7684 Ruby \u5e93\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd DSL\uff08\u9886\u57df\u7279\u5b9a\u8bed\u8a00\uff09\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u5b9a\u4e49\u6293\u53d6\u89c4\u5219\u3002<\/li>\n<\/ol>\n\n\n\n

          PHP<\/h3>\n\n\n\n

          \u53ea\u662f\u4e3a\u4e86\u6709\u4e00\u7bc7\u5b8c\u6574\u7684\u6587\u7ae0\u800c\u5217\u51fa\u5b83\uff0c\u4f46\u4e0d\u8981\u4f7f\u7528 PHP \u8fdb\u884c\u6293\u53d6\u3002<\/p>\n\n\n\n

            \n
          1. \u53e4\u7279\uff1a <\/strong>\u57fa\u4e8e Symfony \u7684 BrowserKit \u548c DomCrawler \u7ec4\u4ef6\u8bbe\u8ba1\u3002\u8be5\u5e93\u5177\u6709\u53ef\u7528\u4e8e\u6d4f\u89c8\u7f51\u7ad9\u3001\u70b9\u51fb\u94fe\u63a5\u548c\u6536\u96c6\u6570\u636e\u7684 API\u3002
            <\/li>\n\n\n\n
          2. \u7b80\u5355\u7684 HTML DOM \u89e3\u6790\u5668\uff1a<\/strong> \u4f7f\u7528\u6b64\u5e93\u53ef\u4ee5\u89e3\u6790 HTML \u548c XML \u6587\u6863\u3002\u7531\u4e8e\u5176\u8bed\u6cd5\u4e0e jQuery \u7c7b\u4f3c\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u64cd\u4f5c DOM\u3002
            <\/li>\n\n\n\n
          3. \u72c2\u996e\uff1a<\/strong> \u5b83\u7684\u9ad8\u7ea7 API \u5141\u8bb8\u60a8\u53d1\u51fa HTTP \u8bf7\u6c42\u5e76\u7ba1\u7406\u60a8\u53ef\u4ee5\u8fd4\u56de\u7684\u4e0d\u540c\u54cd\u5e94\u3002<\/li>\n<\/ol>\n\n\n\n

            \u722a\u54c7<\/h3>\n\n\n\n

            Java \u63d0\u4f9b\u4e86\u54ea\u4e9b\u53ef\u7528\u4e8e\u7f51\u9875\u6293\u53d6\u7684\u5e93\uff1f\u8ba9\u6211\u4eec\u6765\u770b\u770b\uff1a<\/p>\n\n\n\n

              \n
            1. JSoup\uff1a<\/strong> \u4f7f\u7528\u8fd9\u4e2a\u5e93\u6765\u5206\u6790\u548c\u63d0\u53d6\u7f51\u9875\u4e2d\u7684\u5143\u7d20\u4e0d\u662f\u95ee\u9898\uff0c\u5b83\u6709\u4e00\u4e2a\u7b80\u5355\u7684 API \u6765\u5e2e\u52a9\u60a8\u5b8c\u6210\u8fd9\u4e2a\u4efb\u52a1\u3002
              <\/li>\n\n\n\n
            2. \u7852\uff1a<\/strong> \u5141\u8bb8\u60a8\u7ba1\u7406\u6e90\u4ee3\u7801\u4e2d JavaScript \u8d1f\u8f7d\u8f83\u9ad8\u7684\u7f51\u7ad9\uff0c\u8fd9\u6837\u60a8\u5c31\u53ef\u4ee5\u63d0\u53d6\u8fd9\u79cd\u683c\u5f0f\u7684\u6240\u6709\u60a8\u611f\u5174\u8da3\u7684\u6570\u636e\u3002
              <\/li>\n\n\n\n
            3. Apache HttpClient\uff1a <\/strong>\u4f7f\u7528\u8be5\u5e93\u63d0\u4f9b\u7684\u4f4e\u7ea7 API \u53d1\u51fa HTTP \u8bf7\u6c42\u3002
              <\/li>\n\n\n\n
            4. HTML\u5355\u5143\uff1a<\/strong> \u6b64\u5e93\u6a21\u62df\u4e86\u6ca1\u6709\u56fe\u5f62\u754c\u9762\u7684 Web \u6d4f\u89c8\u5668\uff08\u5373\u65e0\u5934\u6d4f\u89c8\u5668\uff09\uff0c\u5e76\u5141\u8bb8\u60a8\u4ee5\u7f16\u7a0b\u65b9\u5f0f\u4e0e\u7f51\u7ad9\u4ea4\u4e92\u3002\u7279\u522b\u9002\u7528\u4e8e JavaScript \u5bc6\u96c6\u578b\u7f51\u7ad9\uff0c\u5e76\u53ef\u6a21\u62df\u7528\u6237\u64cd\u4f5c\uff08\u5982\u5355\u51fb\u6309\u94ae\u6216\u586b\u5199\u8868\u683c\uff09\u3002
              <\/li>\n<\/ol>\n\n\n\n

              \u5173\u4e8e\u6574\u4e2a\u7f51\u7edc\u6293\u53d6\u7684\u6700\u7ec8\u60f3\u6cd5<\/h2>\n\n\n\n

              \u6211\u5e0c\u671b\u73b0\u5728\u5f88\u6e05\u695a\uff1a\u7f51\u7edc\u6293\u53d6\u5728\u6b63\u786e\u7684\u4eba\u624b\u4e2d\u975e\u5e38\u5f3a\u5927\uff01<\/p>\n\n\n\n

              \u73b0\u5728\u60a8\u77e5\u9053\u5b83\u662f\u4ec0\u4e48\uff0c\u4ee5\u53ca\u5b83\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\uff0c\u73b0\u5728\u662f\u65f6\u5019\u5b66\u4e60\u5982\u4f55\u5728\u60a8\u7684\u5de5\u4f5c\u6d41\u7a0b\u4e2d\u5b9e\u73b0\u5b83\u4e86\uff0c\u4f01\u4e1a\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4ece\u4e2d\u53d7\u76ca\u3002<\/p>\n\n\n\n

              Python\u3001JavaScript \u548c Ruby \u7b49\u7f16\u7a0b\u8bed\u8a00\u662f\u7f51\u7edc\u6293\u53d6\u9886\u57df\u65e0\u53ef\u4e89\u8bae\u7684\u738b\u8005\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 PHP \u6765\u505a\u8fd9\u4ef6\u4e8b\u2026\u2026\u4f46\u4e3a\u4ec0\u4e48\u5462\uff1f\u4e3a\u4ec0\u4e48\u5462\uff1f<\/p>\n\n\n\n

              \u8bf4\u771f\u7684\uff0c\u4e0d\u8981\u4f7f\u7528 PHP \u8fdb\u884c\u7f51\u9875\u6293\u53d6\uff0c\u800c\u5e94\u8be5\u4f7f\u7528 WordPress \u548c Magento\u3002<\/p>","protected":false},"excerpt":{"rendered":"

              Confused and want to know what in the world web scraping is and how it works? Well you’ve come to the right place because we’re about to lay down everything for you. Before we dive in, I can already tell you the short version: Web scraping is the process of extracting publicly available data from […]<\/p>\n","protected":false},"author":1,"featured_media":470948,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-470946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/posts\/470946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/comments?post=470946"}],"version-history":[{"count":1,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/posts\/470946\/revisions"}],"predecessor-version":[{"id":470947,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/posts\/470946\/revisions\/470947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/media\/470948"}],"wp:attachment":[{"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/media?parent=470946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/categories?post=470946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/proxycompass.com\/cn\/wp-json\/wp\/v2\/tags?post=470946"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}