Python Base64

字符串 Base64

import base64
st = 'hello world!'.encode("utf-8")
encode_bs64 = base64.b64encode(st)
# 结果bytes类型
print(encode_bs64)

# bytes => str
encode_bs64 = str(encode_bs64, encoding="utf-8")
print(encode_bs64)

a = 'aGVsbG8gd29ybGQh'
decode_bs64 = base64.b64decode(a).decode("utf-8")
print(decode_bs64)

数组 Base64

import base64
import numpy as np

def base64_encode(byte_arr):
    """
    数组 转 Base64
    @param byte_arr:
    @return: base64_str
    """
    base64_str = base64.b64encode(np.array(byte_arr, dtype=np.uint8)).decode('utf-8')
    return base64_str

def base64_decode(base64_str):
    """
    Base64 转 数组
    @param base64_str:
    @return: byte_arr
    """
    byte_arr = np.frombuffer(base64.b64decode(base64_str), np.uint8)
    return byte_arr