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import re
import csv
from bs4 import BeautifulSoup
import requests
url = ' https://zhuanlan.zhihu.com/p/105570623 '
response = requests . get ( url )
soup = BeautifulSoup ( response . text , ' html.parser ' )
# 初始化数据列表，用于存放提取的信息
data = [ ]
# 假设我们要提取页面上的所有段落文本中数字加句号后面的内容
paragraphs = soup . find_all ( ' p ' )
for paragraph in paragraphs :
text = paragraph . get_text ( )
# 使用正则表达式匹配数字加句号后面的内容
matches = re . findall ( r ' \ d+ \ . \ s*(.*) ' , text )
for match in matches :
# 将匹配到的内容添加到data列表中， ，
data . append ( [ len ( data ) + 1 , match . strip ( ) ] )
# 定义CSV文件的名称
filename = ' extracted_data.csv '
# 写入CSV文件
with open ( filename , ' w ' , newline = ' ' , encoding = ' utf-8 ' ) as csvfile :
csvwriter = csv . writer ( csvfile )
# 写入表头
csvwriter . writerow ( [ ' 序号 ' , ' 内容 ' , ' ' ] )
# 写入数据
for row in data :
# 注意，原问题没有明确"单词"来源，这里假设每条数据只有序号和内容两列
csvwriter . writerow ( row )
print ( f " 数据已成功写入 { filename } " )
