import requests import re # 请求头 headers = {   'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) Applewebkit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36' }  def get_all(url,key):   for page in range(1,200,2):     params = {       'keyword':key,       'enc':'utf-8',       'page':page     }     num = int((int(page)+1)/2)     try:       response = requests.get(url=url,params=params,headers=headers)       # 转码       content = response.text.encode(response.encoding).decode(response.apparent_encoding)       data_all = re.findall('<div class="p-PRice">.*?<i>(.*?)</i>.*?<div class="p-name p-name-tyPE-2">.*?tITle="(.*?)"'                  '.*?<div class="p-shop".*?title="(.*?)"',content,re.S)       for i in data_all:         with open(key + '.txt', 'a+', encoding='utf-8') as f:           f.write('店铺名称：' + i[2]+'/n'+'商品名称：'+i[1]+'/n'+'价格:'+i[0]+'/n/n')         print('第'+str(num)+'页'+'数据下载中....')     except Exception as e:       print(e)  if __name__ == '__main__':   print('输入要搜索的内容，获取京东商城里面的商品名称，店铺名称，商品价格')   key = input('输入搜索内容：')   url = 'https://seArch.jd.COM/Search?'   get_all(url,key)