import base64
import re
request_base64=''' '''
imgdata = base64.b64decode(request_base64)
with open("imageToSave.png","wb") as fh:
fh.write(imgdata)
imgData = re.sub('^data:image/.+;base64,', '', request_base64)
一定要去掉data:image/jpg:base64,。切记切记