话不多说，直接看代码
from PIL import Image
from io import BytesIO
res = client.qrcode.show(ticket)
response_byte = res.content
bytes_stream = BytesIO(response_byte)#请求数据转化字节流
capture_img = Image.open(bytes_stream)#Image打开二进制流Byte字节流数据
capture_img.save('static/img/'+ticket+'.png')
