item_image = response.xpath('//div[@class="unit-detail-album__thumb-image"]')
for item in item_image:
img_item = item.xpath('.//img')
for img in img_item:
self.logger.info(img.extract()) # 打印html
self.logger.info(img.attrib) # 打印属性
img_url = [img.attrib.get('src'), img.attrib.get('lazy-src'), img.attrib.get('data-src'),img.attrib.get('srcset')]