如何使用python从HTML文件中读取数据并将数据写入CSV文件？

import csv
from bs4 import BeautifulSoup

with open('input.html', 'r') as html_file:
    soup = BeautifulSoup(html_file, 'html.parser')

with open('output.csv', 'w', newline='') as csv_file:
    writer = csv.writer(csv_file)
    writer.writerow(['Header1', 'Header2', 'Header3'])  # 写入CSV文件的表头
    for row in data_rows:
        writer.writerow(row)  # 写入数据行

import csv
from bs4 import BeautifulSoup

with open('input.html', 'r') as html_file:
    soup = BeautifulSoup(html_file, 'html.parser')

data_rows = []
table = soup.find('table')  # 假设数据在表格中
for row in table.find_all('tr'):
    data = [cell.get_text(strip=True) for cell in row.find_all('td')]
    data_rows.append(data)

with open('output.csv', 'w', newline='') as csv_file:
    writer = csv.writer(csv_file)
    writer.writerow(['Header1', 'Header2', 'Header3'])
    for row in data_rows:
        writer.writerow(row)