保存图片方法

images_list=response.xpath("//div[@class='items']/ul/li/img/@bimg").extract()
        aa = images_list[0].split('/')
        result = requests.get(url=images_list[0])
        image_name = 'images/'+aa[-1]
        with open(image_name, 'wb+') as s:
            s.write(result.content)
            s.close()