使用正则表达式爬取网站上的图片,语法未报错,但运行结果为none
from lxml import etree
html=etree.HTML(resp.text)
imgs=html.xpath('//*[@class="pic"]/a/img/@src')
name=html.xpath('//*[@class="pic"]/a/img/@alt')
for n,i in enumerate(imgs):
print(f"https://www.dpm.org.cn{i}")
img=requests.get(f"https://www.dpm.org.cn{i}")
with open(f'e:/{name[n]}.jpg', 'wb') as file:
file.write(img.content)