{"id":1110637,"date":"2025-01-08T17:21:33","date_gmt":"2025-01-08T09:21:33","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1110637.html"},"modified":"2025-01-08T17:21:36","modified_gmt":"2025-01-08T09:21:36","slug":"python%e5%a6%82%e4%bd%95%e8%8e%b7%e5%be%97%e7%bd%91%e9%a1%b5%e6%96%87%e6%9c%ac%e6%a1%86%e4%b8%ad%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1110637.html","title":{"rendered":"python\u5982\u4f55\u83b7\u5f97\u7f51\u9875\u6587\u672c\u6846\u4e2d\u5185\u5bb9"},"content":{"rendered":"

\"python\u5982\u4f55\u83b7\u5f97\u7f51\u9875\u6587\u672c\u6846\u4e2d\u5185\u5bb9\"<\/p>\n

Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9\uff0c\u5305\u62ec\u4f7f\u7528Selenium\u3001BeautifulSoup\u548cRequests\u5e93\u3002<\/strong> \u5176\u4e2d\uff0cSelenium<\/strong> \u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u6a21\u62df\u7528\u6237\u64cd\u4f5c\uff0c\u83b7\u53d6\u7f51\u9875\u4e2d\u7684\u5404\u79cd\u5143\u7d20\u5185\u5bb9\uff0c\u7279\u522b\u662f\u5f53\u7f51\u9875\u662f\u52a8\u6001\u52a0\u8f7d\u7684\u65f6\u5019\u3002BeautifulSoup<\/strong> \u548c Requests<\/strong> \u5219\u66f4\u9002\u5408\u7528\u4e8e\u9759\u6001\u7f51\u9875\u7684\u89e3\u6790\u548c\u6293\u53d6\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528Selenium\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/h3>\n<\/p>\n

Selenium\u662f\u4e00\u4e2a\u7528\u4e8e\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u6a21\u62df\u7528\u6237\u64cd\u4f5c\u6765\u83b7\u53d6\u52a8\u6001\u7f51\u9875\u4e2d\u7684\u5185\u5bb9\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u8be6\u7ec6\u7684\u6b65\u9aa4\u4ecb\u7ecd\uff1a<\/p>\n<\/p>\n

1\u3001\u5b89\u88c5Selenium<\/h4>\n<\/p>\n

\u9996\u5148\uff0c\u4f60\u9700\u8981\u5b89\u88c5Selenium\u5e93\u548c\u6d4f\u89c8\u5668\u9a71\u52a8\u7a0b\u5e8f\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5Selenium\uff1a<\/p>\n<\/p>\n

pip install selenium<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7136\u540e\u4e0b\u8f7d\u76f8\u5e94\u7684\u6d4f\u89c8\u5668\u9a71\u52a8\u7a0b\u5e8f\uff0c\u6bd4\u5982Chrome\u6d4f\u89c8\u5668\u7684ChromeDriver\uff0c\u5e76\u5c06\u5176\u8def\u5f84\u6dfb\u52a0\u5230\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u4e2d\u3002<\/p>\n<\/p>\n
2\u3001\u521d\u59cb\u5316Selenium WebDriver<\/h4>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u521d\u59cb\u5316Selenium WebDriver\uff1a<\/p>\n<\/p>\n
from selenium import webdriver<\/p>\n
\u521d\u59cb\u5316Chrome\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver = webdriver.Chrome()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u6253\u5f00\u7f51\u9875\u5e76\u83b7\u53d6\u6587\u672c\u6846\u5185\u5bb9<\/h4>\n<\/p>\n
\u4f7f\u7528Selenium\u6253\u5f00\u7f51\u9875\uff0c\u5e76\u901a\u8fc7\u5b9a\u4f4d\u65b9\u6cd5\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9\uff1a<\/p>\n<\/p>\n
# \u6253\u5f00\u76ee\u6807\u7f51\u9875<\/p>\n
driver.get('https:\/\/example.com')<\/p>\n
\u5b9a\u4f4d\u6587\u672c\u6846\u5143\u7d20\uff0c\u5047\u8bbe\u6587\u672c\u6846\u7684id\u4e3a'textbox'<\/strong><\/h2>\n
textbox = driver.find_element_by_id('textbox')<\/p>\n
\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/strong><\/h2>\n
content = textbox.get_attribute('value')<\/p>\n
print(content)<\/p>\n
\u5173\u95ed\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver.quit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528BeautifulSoup\u548cRequests\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/h3>\n<\/p>\n
BeautifulSoup\u548cRequests\u66f4\u9002\u5408\u7528\u4e8e\u9759\u6001\u7f51\u9875\u7684\u89e3\u6790\u548c\u6293\u53d6\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u8be6\u7ec6\u7684\u6b65\u9aa4\u4ecb\u7ecd\uff1a<\/p>\n<\/p>\n
1\u3001\u5b89\u88c5BeautifulSoup\u548cRequests<\/h4>\n<\/p>\n
\u9996\u5148\uff0c\u4f60\u9700\u8981\u5b89\u88c5BeautifulSoup\u548cRequests\u5e93\uff1a<\/p>\n<\/p>\n
pip install beautifulsoup4 requests<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u53d1\u9001HTTP\u8bf7\u6c42\u5e76\u89e3\u6790\u7f51\u9875<\/h4>\n<\/p>\n
\u4f7f\u7528Requests\u5e93\u53d1\u9001HTTP\u8bf7\u6c42\uff0c\u5e76\u4f7f\u7528BeautifulSoup\u89e3\u6790\u7f51\u9875\uff1a<\/p>\n<\/p>\n
import requests<\/p>\n
from bs4 import BeautifulSoup<\/p>\n
\u53d1\u9001HTTP\u8bf7\u6c42<\/strong><\/h2>\n
response = requests.get('https:\/\/example.com')<\/p>\n
\u89e3\u6790\u7f51\u9875\u5185\u5bb9<\/strong><\/h2>\n
soup = BeautifulSoup(response.content, 'html.parser')<\/p>\n
\u5b9a\u4f4d\u6587\u672c\u6846\u5143\u7d20\uff0c\u5047\u8bbe\u6587\u672c\u6846\u7684id\u4e3a'textbox'<\/strong><\/h2>\n
textbox = soup.find('input', {'id': 'textbox'})<\/p>\n
\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/strong><\/h2>\n
content = textbox['value']<\/p>\n
print(content)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5904\u7406\u52a8\u6001\u52a0\u8f7d\u7684\u7f51\u9875\u5185\u5bb9<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u4e00\u4e9b\u52a8\u6001\u52a0\u8f7d\u7684\u7f51\u9875\u5185\u5bb9\uff0c\u4f7f\u7528Selenium\u66f4\u4e3a\u5408\u9002\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u6a21\u62df\u7528\u6237\u64cd\u4f5c\uff0c\u7b49\u5f85\u7f51\u9875\u52a0\u8f7d\u5b8c\u6210\u540e\u518d\u83b7\u53d6\u5185\u5bb9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Selenium\u5904\u7406\u52a8\u6001\u52a0\u8f7d\u7f51\u9875\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import time<\/p>\n
from selenium import webdriver<\/p>\n
\u521d\u59cb\u5316Chrome\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver = webdriver.Chrome()<\/p>\n
\u6253\u5f00\u76ee\u6807\u7f51\u9875<\/strong><\/h2>\n
driver.get('https:\/\/example.com')<\/p>\n
\u7b49\u5f85\u7f51\u9875\u52a0\u8f7d\u5b8c\u6210<\/strong><\/h2>\n
time.sleep(5)<\/p>\n
\u5b9a\u4f4d\u6587\u672c\u6846\u5143\u7d20\uff0c\u5047\u8bbe\u6587\u672c\u6846\u7684id\u4e3a'textbox'<\/strong><\/h2>\n
textbox = driver.find_element_by_id('textbox')<\/p>\n
\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/strong><\/h2>\n
content = textbox.get_attribute('value')<\/p>\n
print(content)<\/p>\n
\u5173\u95ed\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver.quit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5904\u7406\u9700\u8981\u767b\u5f55\u7684\u7f51\u9875<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u9700\u8981\u767b\u5f55\u7684\u7f51\u9875\uff0cSelenium\u4e5f\u53ef\u4ee5\u901a\u8fc7\u6a21\u62df\u7528\u6237\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\u6765\u767b\u5f55\uff0c\u7136\u540e\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
from selenium import webdriver<\/p>\n
\u521d\u59cb\u5316Chrome\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver = webdriver.Chrome()<\/p>\n
\u6253\u5f00\u767b\u5f55\u9875\u9762<\/strong><\/h2>\n
driver.get('https:\/\/example.com\/login')<\/p>\n
\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801<\/strong><\/h2>\n
username = driver.find_element_by_id('username')<\/p>\n
password = driver.find_element_by_id('password')<\/p>\n
username.send_keys('your_username')<\/p>\n
password.send_keys('your_password')<\/p>\n
\u63d0\u4ea4\u767b\u5f55\u8868\u5355<\/strong><\/h2>\n
login_button = driver.find_element_by_id('login-button')<\/p>\n
login_button.click()<\/p>\n
\u7b49\u5f85\u9875\u9762\u52a0\u8f7d\u5b8c\u6210<\/strong><\/h2>\n
driver.implicitly_wAI<\/a>t(10)<\/p>\n
\u5b9a\u4f4d\u6587\u672c\u6846\u5143\u7d20\uff0c\u5047\u8bbe\u6587\u672c\u6846\u7684id\u4e3a'textbox'<\/strong><\/h2>\n
textbox = driver.find_element_by_id('textbox')<\/p>\n
\u83b7\u53d6\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9<\/strong><\/h2>\n
content = textbox.get_attribute('value')<\/p>\n
print(content)<\/p>\n
\u5173\u95ed\u6d4f\u89c8\u5668<\/strong><\/h2>\n
driver.quit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
    \n
  1. \n
    \u5904\u7406\u5f02\u5e38\u60c5\u51b5<\/strong>\uff1a\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\uff0c\u5982\u5143\u7d20\u672a\u627e\u5230\u3001\u7f51\u9875\u52a0\u8f7d\u8d85\u65f6\u7b49\u3002\u5efa\u8bae\u6dfb\u52a0\u9002\u5f53\u7684\u5f02\u5e38\u5904\u7406\u4ee3\u7801\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u9c81\u68d2\u6027\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u4f7f\u7528CSS\u9009\u62e9\u5668\u548cXPath<\/strong>\uff1a\u9664\u4e86\u901a\u8fc7ID\u5b9a\u4f4d\u5143\u7d20\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528CSS\u9009\u62e9\u5668\u548cXPath\u6765\u5b9a\u4f4d\u5143\u7d20\uff0c\u4ece\u800c\u83b7\u53d6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    \u4f18\u5316\u7b49\u5f85\u65f6\u95f4<\/strong>\uff1a\u4f7f\u7528Selenium\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u663e\u5f0f\u7b49\u5f85\u548c\u9690\u5f0f\u7b49\u5f85\u6765\u4f18\u5316\u7b49\u5f85\u65f6\u95f4\uff0c\u786e\u4fdd\u7f51\u9875\u5b8c\u5168\u52a0\u8f7d\u540e\u518d\u83b7\u53d6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<\/li>\n
  4. \n
    \u4fdd\u62a4\u9690\u79c1\u548c\u5408\u6cd5\u6027<\/strong>\uff1a\u5728\u6293\u53d6\u7f51\u9875\u5185\u5bb9\u65f6\uff0c\u8bf7\u52a1\u5fc5\u9075\u5b88\u76f8\u5173\u6cd5\u5f8b\u6cd5\u89c4\uff0c\u4fdd\u62a4\u7528\u6237\u9690\u79c1\uff0c\u907f\u514d\u975e\u6cd5\u722c\u53d6\u548c\u4f7f\u7528\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528Python\u8f7b\u677e\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u4e2d\u7684\u5185\u5bb9\u3002\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\u548c\u65b9\u6cd5\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u8c03\u6574\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u722c\u53d6\u6548\u7387\u548c\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u4f7f\u7528Python\u83b7\u53d6\u7f51\u9875\u4e2d\u7684\u6587\u672c\u6846\u5185\u5bb9\uff1f<\/strong>
    \u8981\u83b7\u53d6\u7f51\u9875\u4e2d\u6587\u672c\u6846\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u7684\u7f51\u9875\u6293\u53d6\u5e93\uff0c\u5982Beautiful Soup\u548crequests\u3002\u9996\u5148\uff0c\u901a\u8fc7requests\u5e93\u83b7\u53d6\u7f51\u9875\u5185\u5bb9\uff0c\u7136\u540e\u5229\u7528Beautiful Soup\u89e3\u6790HTML\u7ed3\u6784\uff0c\u627e\u5230\u76ee\u6807\u6587\u672c\u6846\u7684<input><\/code>\u6216<textarea><\/code>\u6807\u7b7e\u3002\u901a\u8fc7\u6807\u7b7e\u7684name<\/code>\u6216id<\/code>\u5c5e\u6027\uff0c\u53ef\u4ee5\u63d0\u53d6\u6587\u672c\u6846\u7684\u5185\u5bb9\u3002<\/p>\n
    \u83b7\u53d6\u52a8\u6001\u7f51\u9875\u6587\u672c\u6846\u5185\u5bb9\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f<\/strong>
    \u5bf9\u4e8e\u4e00\u4e9b\u4f7f\u7528JavaScript\u52a8\u6001\u52a0\u8f7d\u5185\u5bb9\u7684\u7f51\u9875\uff0c\u4f7f\u7528selenium\u5e93\u975e\u5e38\u6709\u6548\u3002Selenium\u80fd\u591f\u6a21\u62df\u6d4f\u89c8\u5668\u64cd\u4f5c\uff0c\u7b49\u5f85\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u540e\uff0c\u901a\u8fc7\u67e5\u627e\u6587\u672c\u6846\u5143\u7d20\u83b7\u53d6\u5176\u5185\u5bb9\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u4e0e\u7f51\u9875\u8fdb\u884c\u4ea4\u4e92\u7684\u60c5\u51b5\uff0c\u5982\u767b\u5f55\u6216\u586b\u5199\u8868\u5355\u3002<\/p>\n
    \u662f\u5426\u9700\u8981\u5b89\u88c5\u989d\u5916\u7684\u5e93\u6765\u83b7\u53d6\u7f51\u9875\u6587\u672c\u6846\u5185\u5bb9\uff1f<\/strong>
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