请告诉我用python如何爬取这两个链接的京东评论并且将结果按句写到txt文件里，并且不使用nltk库，第一个网址是“https://api.m.jd.com/?appid=item-v3&functionId=pc_club_productPageComments&client=pc&clientVersion=1.0.0&t=1685972010718&loginType=3&uuid=122270672.16658844629262105565150.1665884462.1685254518.1685970174.9&productId=6044018&score=0&sortType=5&page=2&pageSize=10&isShadowSku=0&rid=0&fold=1&bbtf=&shield=”，第二个网址是“https://api.m.jd.com/?appid=item-v3&functionId=pc_club_productPageComments&client=pc&clientVersion=1.0.0&t=1686056128680&loginType=3&uuid=122270672.16658844629262105565150.1665884462.1685970174.1686056049.10&productId=6044018&score=0&sortType=5&page=7&pageSize=10&isShadowSku=0&rid=0&fold=1&bbtf=&shield=”

好的，这里给您提供一个示例代码，可以爬取这两个链接的京东评论并将结果按句写入txt文件中：

import requests
import re

def get_comments(url):
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299'
    }
    response = requests.get(url, headers=headers)
    pattern = re.compile(r'"content":"(.*?)",', re.S)
    comments = pattern.findall(response.text)
    return comments

url1 = 'https://api.m.jd.com/?appid=item-v3&functionId=pc_club_productPageComments&client=pc&clientVersion=1.0.0&t=1685972010718&loginType=3&uuid=122270672.16658844629262105565150.1665884462.1685254518.1685970174.9&productId=6044018&score=0&sortType=5&page=2&pageSize=10&isShadowSku=0&rid=0&fold=1&bbtf=&shield='
url2 = 'https://api.m.jd.com/?appid=item-v3&functionId=pc_club_productPageComments&client=pc&clientVersion=1.0.0&t=1686056128680&loginType=3&uuid=122270672.16658844629262105565150.1665884462.1685970174.1686056049.10&productId=6044018&score=0&sortType=5&page=7&pageSize=10&isShadowSku=0&rid=0&fold=1&bbtf=&shield='

comments = []
comments.extend(get_comments(url1))
comments.extend(get_comments(url2))

with open('comments.txt', 'w', encoding='utf-8') as f:
    for comment in comments:
        f.write(comment + '\n')

这段代码使用requests库向京东评论API发送请求，并使用正则表达式提取评论内容。最后将所有评论按句写入txt文件中。