python爬取淘宝商品销量的程序，运行程序，输入想要爬取的商品关键词，在代码中的‘###'可以进一步约束商品的属性，比如某某作者的书籍，可以在###处输入作者名字，以及时期等等。最后可以得到所要商品的总销量
import requestsimport bs4import reimport json def open(keywords, page): headers={"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"} payload = {'q':keywords, 'sort':"sale-desc", 's':(page-1)*44} url = "https://s.taobao.com/search" res = requests.get(url, params = payload) return res def get_item(res): g_page_config = re.search(r'g_page_config = (.*?);/n', res.text) page_config_json = json.loads(g_page_config.group(1)) page_item = page_config_json['mods']['itemlist']['data']['auctions'] result = []#整理出我们关注的信息(ID,标题，链接，售价，销量和商家) for each in page_item: dict1 = dict.fromkeys(('id','title','link','price','sale','shoper')) dict1['id'] = each['nid'] dict1['title'] = each['title'] dict1['link'] = each['detail_url'] dict1['price'] = each['view_price'] dict1['sale'] = each['view_sales'] dict1['shoper'] = each['nick'] result.append(dict1) return result def count_sales(items): count = 0 for each in items: if '###' in each['title']:#规定只取标题中‘###'的商品 count += int(re.search(r'/d+',each['sale']).group()) return count def main(): keywords = input("请输入搜索关键词：")#可以为各种商品名称 length = 10#淘宝商品页数 total = 0 for each in range(length): res = open(keywords, each+1) items = get_item(res) total += count_sales(items)#销售总量 print(total) if __name__ == "__main__": main() 
