base64自定义表

字符替换

# -*- coding: utf-8
import base64

STANDARD_ALPHABET = b'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
CUSTOM_ALPHABET = b'JXaYOjSNTet1dDrHsVlc0m5EknG7Ko6qibhFBuyzQUwxWCp4ZLf23gAvMR8PI9+/'
ENCODE_TRANS = bytes.maketrans(STANDARD_ALPHABET, CUSTOM_ALPHABET)
DECODE_TRANS = bytes.maketrans(CUSTOM_ALPHABET, STANDARD_ALPHABET)

def encode(input):
  return base64.b64encode(input).translate(ENCODE_TRANS)

def decode(input):
  return base64.b64decode(input.translate(DECODE_TRANS))

enstr = encode("123".encode())
print(enstr.decode()) #dcT2

destr = decode(enstr)
print(destr.decode()) #123