python爬取淘寶商品銷量的程序，運行程序，輸入想要爬取的商品關鍵詞，在代碼中的‘###'可以進一步約束商品的屬性，比如某某作者的書籍，可以在###處輸入作者名字，以及時期等等。最后可以得到所要商品的總銷量

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 = []#整理出我們關注的信息(ID,標題，鏈接，售價，銷量和商家)   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']:#規定只取標題中‘###'的商品         count += int(re.search(r'/d+',each['sale']).group())            return count def main():    keywords = input("請輸入搜索關鍵詞：")#可以為各種商品名稱   length = 10#淘寶商品頁數   total = 0      for each in range(length):      res = open(keywords, each+1)      items = get_item(res)      total += count_sales(items)#銷售總量   print(total)  if __name__ == "__main__":   main()

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