如何在python中仅从网页的所有表中提取类？

pip install requests beautifulsoup4

import requests
from bs4 import BeautifulSoup

# 网页URL
url = '你的目标网页URL'

# 发送HTTP请求
response = requests.get(url)

# 检查请求是否成功
if response.status_code == 200:
    # 解析HTML内容
    soup = BeautifulSoup(response.text, 'html.parser')
    
    # 找到所有的表格
    tables = soup.find_all('table')
    
    # 遍历每个表格
    for table in tables:
        # 提取表格的类
        table_classes = table.get('class')
        if table_classes:
            print(f"Table classes: {table_classes}")
        
        # 如果你想提取表格内所有元素的类，可以这样做
        for element in table.find_all(True):  # True表示查找所有元素
            element_classes = element.get('class')
            if element_classes:
                print(f"Element: {element.name}, Classes: {element_classes}")
else:
    print(f"Failed to retrieve the webpage. Status code: {response.status_code}")