比如图片地址是

src="data:image/gif;base64,R0lGODlhMwAxAIAAAAAAAP///

yH5BAAAAAAALAAAAAAzADEAAAK8jI+pBr0PowytzotTtbm/DTqQ6C3hGX

ElcraA9jIr66ozVpM3nseUvYP1UEHF0FUUHkNJxhLZfEJNvol06tzwrgd

LbXsFZYmSMPnHLB+zNJFbq15+SOf50+6rG7lKOjwV1ibGdhHYRVYVJ9Wn

k2HWtLdIWMSH9lfyODZoZTb4xdnpxQSEF9oyOWIqp6gaI9pI1Qo7BijbF

ZkoaAtEeiiLeKn72xM7vMZofJy8zJys2UxsCT3kO229LH1tXAAAOw=="


提取出其中的base64地址,然后base64解码,然后保存为图片

url='''R0lGODlhMwAxAIAAAAAAAP///
yH5BAAAAAAALAAAAAAzADEAAAK8jI+pBr0PowytzotTtbm/DTqQ6C3hGX
ElcraA9jIr66ozVpM3nseUvYP1UEHF0FUUHkNJxhLZfEJNvol06tzwrgd
LbXsFZYmSMPnHLB+zNJFbq15+SOf50+6rG7lKOjwV1ibGdhHYRVYVJ9Wn
k2HWtLdIWMSH9lfyODZoZTb4xdnpxQSEF9oyOWIqp6gaI9pI1Qo7BijbF
ZkoaAtEeiiLeKn72xM7vMZofJy8zJys2UxsCT3kO229LH1tXAAAOw=='''
import base64 
img=base64.urlsafe_b64decode(url + '=' * (4 - len(url) % 4))
fh = open("imageToSave.png", "wb")
fh.write(img)
fh.close()


本地的imageToSave.png就是你要解析的图片