base 64转码PYTHON

import os, base64

# 图片装换

# 将读取的二进制文件转换为base64字符串
bs64_str = 'data:image/jpeg;base64,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'
# 打印图像转换base64格式的字符串,type结果为<class 'bytes'>
# 前端上传的base64,存放在django的媒体文件库中
b64_data =bs64_str.split(';base64,')[1]

print(b64_data)
data = base64.b64decode(b64_data)
with open("yzm.jpg", 'wb') as f:
    f.write(data)

 安装PILLOW  直接显示

# -*- encode:utf-8 -*-
import os, base64
from PIL import Image,ImageGrab
from io import BytesIO
# 图片装换

# 将读取的二进制文件转换为base64字符串
bs64_str = 'data:image/jpeg;base64,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'
# 打印图像转换base64格式的字符串,type结果为<class 'bytes'>
# 前端上传的base64,存放在django的媒体文件库中
b64_data =bs64_str.split(';base64,')[1]

print(b64_data)
data = base64.b64decode(b64_data)
im=Image.open(BytesIO(data))
im.show()