{"id":992227,"date":"2024-12-27T08:35:30","date_gmt":"2024-12-27T00:35:30","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/992227.html"},"modified":"2024-12-27T08:35:32","modified_gmt":"2024-12-27T00:35:32","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e7%bd%91%e7%bb%9c%e5%a1%ab%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/992227.html","title":{"rendered":"\u5982\u4f55\u7528python\u7f51\u7edc\u586b\u8868"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u7f51\u7edc\u586b\u8868\"<\/p>\n

\u4f7f\u7528Python\u8fdb\u884c\u7f51\u7edc\u586b\u8868\u53ef\u4ee5\u901a\u8fc7\u591a\u4e2a\u6b65\u9aa4\u5b9e\u73b0\uff0c\u5305\u62ec\u5206\u6790\u76ee\u6807\u7f51\u9875\u3001\u9009\u62e9\u5408\u9002\u7684\u5e93\u3001\u7f16\u5199\u81ea\u52a8\u5316\u811a\u672c\u548c\u5904\u7406\u54cd\u5e94\u7ed3\u679c\u3002\u5e38\u7528\u7684\u5e93\u6709Selenium\u3001Requests\u548cBeautifulSoup\u7b49\uff0c\u9009\u62e9\u5408\u9002\u7684\u5e93\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u548c\u51c6\u786e\u6027\u3002\u5728\u8fd9\u4e9b\u5e93\u4e2d\uff0cSelenium\u56e0\u5176\u5f3a\u5927\u7684\u529f\u80fd\u548c\u6613\u4e8e\u64cd\u4f5c\u7684\u754c\u9762\uff0c\u5c24\u5176\u9002\u5408\u5904\u7406\u52a8\u6001\u7f51\u9875\u548c\u590d\u6742\u7684\u8868\u5355\u586b\u62a5\u4efb\u52a1\u3002<\/strong><\/p>\n<\/p>\n

\u4e00\u3001\u5206\u6790\u76ee\u6807\u7f51\u9875<\/p>\n<\/p>\n

\u5728\u5f00\u59cb\u7f16\u5199\u586b\u8868\u811a\u672c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5206\u6790\u76ee\u6807\u7f51\u9875\u7684\u7ed3\u6784\u3002\u901a\u8fc7\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u53ef\u4ee5\u67e5\u770b\u7f51\u9875\u7684HTML\u7ed3\u6784\u3001\u627e\u5230\u8868\u5355\u5143\u7d20\u7684\u5177\u4f53\u4f4d\u7f6e\u548c\u5c5e\u6027\u3002\u8fd9\u4e00\u6b65\u662f\u4e3a\u4e86\u660e\u786e\u9700\u8981\u81ea\u52a8\u5316\u64cd\u4f5c\u7684\u5143\u7d20\uff0c\u6bd4\u5982\u8f93\u5165\u6846\u3001\u6309\u94ae\u7b49\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    \u4f7f\u7528\u5f00\u53d1\u8005\u5de5\u5177<\/strong><\/p>\n<\/p>\n

    \u5728\u6d4f\u89c8\u5668\u4e2d\u6253\u5f00\u76ee\u6807\u7f51\u9875\uff0c\u4f7f\u7528\u53f3\u952e\u83dc\u5355\u9009\u62e9\u201c\u68c0\u67e5\u201d\u6216\u6309\u4e0bF12\u952e\u6253\u5f00\u5f00\u53d1\u8005\u5de5\u5177\u3002\u901a\u8fc7\u201c\u5143\u7d20\u201d\u9009\u9879\u5361\uff0c\u53ef\u4ee5\u67e5\u770b\u7f51\u9875\u7684HTML\u7ed3\u6784\u3002\u901a\u8fc7\u5de5\u5177\u4e2d\u7684\u201c\u9009\u62e9\u5143\u7d20\u201d\u529f\u80fd\uff0c\u76f4\u63a5\u5b9a\u4f4d\u5230\u9700\u8981\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20\uff0c\u67e5\u770b\u5176ID\u3001name\u6216\u5176\u4ed6\u5c5e\u6027\u3002<\/p>\n<\/p>\n<\/li>\n

  2. \n

    \u7406\u89e3\u7f51\u9875\u4ea4\u4e92\u903b\u8f91<\/strong><\/p>\n<\/p>\n

    \u9664\u4e86\u9759\u6001\u7684HTML\u7ed3\u6784\uff0c\u7f51\u9875\u53ef\u80fd\u6d89\u53ca\u5230JavaScript\u7684\u52a8\u6001\u4ea4\u4e92\u903b\u8f91\uff0c\u6bd4\u5982\u8868\u5355\u9a8c\u8bc1\u3001\u52a8\u6001\u52a0\u8f7d\u7b49\u3002\u8fd9\u65f6\uff0c\u9700\u8981\u5728\u201c\u7f51\u7edc\u201d\u6216\u201c\u6e90\u4ee3\u7801\u201d\u9009\u9879\u5361\u4e2d\u5206\u6790\u7f51\u9875\u8bf7\u6c42\u7684\u5177\u4f53\u884c\u4e3a\uff0c\u4ee5\u786e\u4fdd\u81ea\u52a8\u5316\u811a\u672c\u80fd\u591f\u6b63\u786e\u6a21\u62df\u7528\u6237\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

    \u4e8c\u3001\u9009\u62e9\u5408\u9002\u7684\u5e93<\/p>\n<\/p>\n

    \u6839\u636e\u7f51\u9875\u7684\u6027\u8d28\u548c\u5177\u4f53\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684Python\u5e93\u6765\u5b9e\u73b0\u81ea\u52a8\u586b\u8868\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u7528\u7684\u5e93\u53ca\u5176\u9002\u7528\u573a\u666f\uff1a<\/p>\n<\/p>\n

      \n
    1. \n

      Requests\u548cBeautifulSoup<\/strong><\/p>\n<\/p>\n

      \u5982\u679c\u76ee\u6807\u7f51\u9875\u662f\u9759\u6001\u7684\uff0c\u4e14\u4e0d\u9700\u8981\u5904\u7406\u590d\u6742\u7684JavaScript\u4ea4\u4e92\uff0cRequests\u548cBeautifulSoup\u662f\u975e\u5e38\u9ad8\u6548\u7684\u9009\u62e9\u3002Requests\u53ef\u4ee5\u7528\u4e8e\u53d1\u9001HTTP\u8bf7\u6c42\uff0c\u800cBeautifulSoup\u5219\u53ef\u4ee5\u89e3\u6790\u548c\u5904\u7406HTML\u6587\u6863\u3002<\/p>\n<\/p>\n<\/li>\n

    2. \n

      Selenium<\/strong><\/p>\n<\/p>\n

      Selenium\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5e93\uff0c\u9002\u7528\u4e8e\u9700\u8981\u6a21\u62df\u7528\u6237\u64cd\u4f5c\u7684\u52a8\u6001\u7f51\u9875\u3002\u5b83\u53ef\u4ee5\u9a71\u52a8\u6d4f\u89c8\u5668\u6267\u884c\u590d\u6742\u7684\u4efb\u52a1\uff0c\u5982\u586b\u5199\u8868\u5355\u3001\u70b9\u51fb\u6309\u94ae\u3001\u5904\u7406JavaScript\u7b49\uff0c\u51e0\u4e4e\u53ef\u4ee5\u5b8c\u6210\u4efb\u4f55\u624b\u52a8\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

      \u4e09\u3001\u4f7f\u7528Requests\u548cBeautifulSoup<\/p>\n<\/p>\n

      \u5bf9\u4e8e\u9759\u6001\u7f51\u9875\uff0cRequests\u548cBeautifulSoup\u7684\u7ec4\u5408\u662f\u7406\u60f3\u7684\u9009\u62e9\u3002\u4e0b\u9762\u662f\u57fa\u672c\u7684\u4f7f\u7528\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

        \n
      1. \n

        \u5b89\u88c5\u5e93<\/strong><\/p>\n<\/p>\n

        \u9996\u5148\u9700\u8981\u5b89\u88c5Requests\u548cBeautifulSoup\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

        pip install requests beautifulsoup4<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      2. \n
        \u53d1\u9001\u8bf7\u6c42\u5e76\u89e3\u6790\u7f51\u9875<\/strong><\/p>\n<\/p>\n
        \u4f7f\u7528Requests\u5e93\u53d1\u9001GET\u8bf7\u6c42\u83b7\u53d6\u7f51\u9875\u5185\u5bb9\uff0c\u7136\u540e\u4f7f\u7528BeautifulSoup\u89e3\u6790HTML\u6587\u6863\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
        import requests<\/p>\n
        from bs4 import BeautifulSoup<\/p>\n
        url = 'http:\/\/example.com\/form'<\/p>\n
        response = requests.get(url)<\/p>\n
        soup = BeautifulSoup(response.text, 'html.parser')<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      3. \n
        \u5b9a\u4f4d\u5e76\u586b\u5199\u8868\u5355<\/strong><\/p>\n<\/p>\n
        \u4f7f\u7528BeautifulSoup\u67e5\u627e\u8868\u5355\u5143\u7d20\uff0c\u5e76\u6784\u5efa\u8bf7\u6c42\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
        form_data = {<\/p>\n
            'username': 'your_username',<\/p>\n
            'password': 'your_password'<\/p>\n
        }<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      4. \n
        \u63d0\u4ea4\u8868\u5355<\/strong><\/p>\n<\/p>\n
        \u4f7f\u7528Requests\u7684POST\u65b9\u6cd5\u63d0\u4ea4\u8868\u5355\u6570\u636e\uff1a<\/p>\n<\/p>\n
        post_url = 'http:\/\/example.com\/submit'<\/p>\n
        response = requests.post(post_url, data=form_data)<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ol>\n
        \u56db\u3001\u4f7f\u7528Selenium<\/p>\n<\/p>\n
        Selenium\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u52a8\u6001\u5185\u5bb9\u7684\u7f51\u9875\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Selenium\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n
          \n
        1. \n
          \u5b89\u88c5Selenium\u53ca\u6d4f\u89c8\u5668\u9a71\u52a8<\/strong><\/p>\n<\/p>\n
          \u5b89\u88c5Selenium\u5e93\u548c\u5bf9\u5e94\u6d4f\u89c8\u5668\u7684\u9a71\u52a8\u7a0b\u5e8f\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8eChrome\u6d4f\u89c8\u5668\uff0c\u9700\u8981\u5b89\u88c5ChromeDriver\u3002\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u5b89\u88c5Selenium\uff1a<\/p>\n<\/p>\n
          pip install selenium<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        2. \n
          \u542f\u52a8\u6d4f\u89c8\u5668\u5e76\u8bbf\u95ee\u7f51\u9875<\/strong><\/p>\n<\/p>\n
          \u4f7f\u7528Selenium\u542f\u52a8\u6d4f\u89c8\u5668\u5e76\u8bbf\u95ee\u76ee\u6807\u7f51\u9875\uff1a<\/p>\n<\/p>\n
          from selenium import webdriver<\/p>\n
          driver = webdriver.Chrome()  # \u6216\u8005\u4f7f\u7528\u5176\u4ed6\u6d4f\u89c8\u5668\u7684\u9a71\u52a8<\/p>\n
          driver.get('http:\/\/example.com\/form')<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        3. \n
          \u5b9a\u4f4d\u8868\u5355\u5143\u7d20\u5e76\u586b\u5199\u6570\u636e<\/strong><\/p>\n<\/p>\n
          \u4f7f\u7528Selenium\u7684\u5b9a\u4f4d\u65b9\u6cd5\u627e\u5230\u8868\u5355\u5143\u7d20\u5e76\u8f93\u5165\u6570\u636e\uff1a<\/p>\n<\/p>\n
          username_input = driver.find_element_by_name('username')<\/p>\n
          username_input.send_keys('your_username')<\/p>\n
          password_input = driver.find_element_by_name('password')<\/p>\n
          password_input.send_keys('your_password')<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        4. \n
          \u63d0\u4ea4\u8868\u5355<\/strong><\/p>\n<\/p>\n
          \u627e\u5230\u5e76\u70b9\u51fb\u63d0\u4ea4\u6309\u94ae\uff1a<\/p>\n<\/p>\n
          submit_button = driver.find_element_by_name('submit')<\/p>\n
          submit_button.click()<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        5. \n
          \u5904\u7406\u54cd\u5e94<\/strong><\/p>\n<\/p>\n
          \u586b\u5199\u5e76\u63d0\u4ea4\u8868\u5355\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7Selenium\u7ee7\u7eed\u64cd\u4f5c\u9875\u9762\u6216\u8005\u83b7\u53d6\u63d0\u4ea4\u7ed3\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
          success_message = driver.find_element_by_id('success')<\/p>\n
          print(success_message.text)<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ol>\n
          \u4e94\u3001\u5904\u7406\u52a8\u6001\u7f51\u9875<\/p>\n<\/p>\n
          \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7f51\u9875\u53ef\u80fd\u4f1a\u52a8\u6001\u52a0\u8f7d\u5185\u5bb9\u6216\u4f7f\u7528\u590d\u6742\u7684JavaScript\u903b\u8f91\u8fdb\u884c\u8868\u5355\u9a8c\u8bc1\u3002\u6b64\u65f6\uff0c\u4f7f\u7528Selenium\u7684WebDriverWAI<\/a>t\u529f\u80fd\u53ef\u4ee5\u786e\u4fdd\u811a\u672c\u7b49\u5f85\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u6216\u7279\u5b9a\u5143\u7d20\u53ef\u7528\uff1a<\/p>\n<\/p>\n
            \n
          1. \n
            \u4f7f\u7528WebDriverWait<\/strong><\/p>\n<\/p>\n
            WebDriverWait\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u8d85\u65f6\u65f6\u95f4\uff0c\u76f4\u5230\u67d0\u4e2a\u6761\u4ef6\u6ee1\u8db3\u624d\u7ee7\u7eed\u6267\u884c\u3002\u4f8b\u5982\uff0c\u7b49\u5f85\u67d0\u4e2a\u5143\u7d20\u53ef\u89c1\uff1a<\/p>\n<\/p>\n
            from selenium.webdriver.common.by import By<\/p>\n
            from selenium.webdriver.support.ui import WebDriverWait<\/p>\n
            from selenium.webdriver.support import expected_conditions as EC<\/p>\n
            element = WebDriverWait(driver, 10).until(<\/p>\n
                EC.presence_of_element_located((By.ID, 'element_id'))<\/p>\n
            )<\/p>\n
            <\/code><\/pre>\n<\/p>\n<\/li>\n
          2. \n
            \u5904\u7406\u5f02\u6b65\u8bf7\u6c42<\/strong><\/p>\n<\/p>\n
            \u5982\u679c\u7f51\u9875\u4f7f\u7528\u5f02\u6b65\u8bf7\u6c42\u52a0\u8f7d\u6570\u636e\uff0c\u53ef\u4ee5\u901a\u8fc7\u76d1\u542c\u7f51\u7edc\u8bf7\u6c42\u6216\u76f4\u63a5\u8bbf\u95eeAPI\u63a5\u53e3\u6765\u83b7\u53d6\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
            \u516d\u3001\u8c03\u8bd5\u548c\u4f18\u5316<\/p>\n<\/p>\n
            \u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u95ee\u9898\uff0c\u6bd4\u5982\u5143\u7d20\u5b9a\u4f4d\u5931\u8d25\u3001\u7f51\u7edc\u8bf7\u6c42\u5f02\u5e38\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8c03\u8bd5\u548c\u4f18\u5316\u5efa\u8bae\uff1a<\/p>\n<\/p>\n
              \n
            1. \n
              \u4f7f\u7528\u622a\u56fe\u8c03\u8bd5<\/strong><\/p>\n<\/p>\n
              \u4f7f\u7528Selenium\u7684\u622a\u56fe\u529f\u80fd\u6355\u83b7\u5f53\u524d\u9875\u9762\u7684\u72b6\u6001\uff0c\u5e2e\u52a9\u8bc6\u522b\u95ee\u9898\uff1a<\/p>\n<\/p>\n
              driver.save_screenshot('screenshot.png')<\/p>\n
              <\/code><\/pre>\n<\/p>\n<\/li>\n
            2. \n
              \u68c0\u67e5\u7f51\u7edc\u8bf7\u6c42<\/strong><\/p>\n<\/p>\n
              \u4f7f\u7528\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\u68c0\u67e5\u7f51\u7edc\u8bf7\u6c42\uff0c\u786e\u4fdd\u811a\u672c\u53d1\u9001\u7684\u8bf7\u6c42\u4e0e\u624b\u52a8\u64cd\u4f5c\u4e00\u81f4\u3002<\/p>\n<\/p>\n<\/li>\n
            3. \n
              \u4f18\u5316\u6027\u80fd<\/strong><\/p>\n<\/p>\n
              \u5728\u586b\u8868\u64cd\u4f5c\u4e2d\uff0c\u5c3d\u91cf\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\u65f6\u95f4\u548c\u64cd\u4f5c\u6b65\u9aa4\uff0c\u63d0\u9ad8\u811a\u672c\u7684\u6267\u884c\u6548\u7387\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
              \u4e03\u3001\u5b89\u5168\u548c\u6cd5\u5f8b\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n
              \u5728\u4f7f\u7528Python\u8fdb\u884c\u7f51\u7edc\u586b\u8868\u65f6\uff0c\u9700\u9075\u5faa\u6cd5\u5f8b\u6cd5\u89c4\u548c\u7f51\u7ad9\u7684\u4f7f\u7528\u6761\u6b3e\u3002\u786e\u4fdd\u4e0d\u8fdb\u884c\u6076\u610f\u64cd\u4f5c\u6216\u672a\u7ecf\u6388\u6743\u7684\u6570\u636e\u8bbf\u95ee\u3002\u540c\u65f6\uff0c\u6ce8\u610f\u4fdd\u62a4\u4e2a\u4eba\u4fe1\u606f\u548c\u8d26\u6237\u5b89\u5168\u3002<\/p>\n<\/p>\n
              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
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