def get_commodity(keyword,page): start_url='https://search.jd.com/Search?keyword={}&enc=utf-8&qrst=1&rt=1&stop=1&vt=2&page={}&click=0'.format(str(keyword),str(page)) jd_data=requests.get(start_url) jd_data.encoding='utf8' time.sleep(1) soup=BeautifulSoup(jd_data.text,"lxml"