字典与字节流的互转

1. hex stream(str) -> bytes

hex_stream_str ="hex stream str"

bytes = bytes.fromhex(hex_stream_str)

2. bytes -> hex stream(str) 

def bytes_to_hexString(bs):
    return ''.join(['%02x' % e for e in bs])

3. bytes 解码

bytes.fromhex(hex_str).strip(b'\xef\xbb\xbf').rstrip(b'\x00').decode('utf-8')

import json

# 原生dict
data_dict = {"a": "b", "a1": [{"a2": "b2"}, "c3"]}
data_str = json.dumps(data_dict)
data_byte = data_str.encode('utf8')
data_hex = ''.join(['%02x' % b for b in data_byte])
print(data_hex)

data_byte1 = bytes.fromhex(data_hex)
data_str1 = data_byte1.strip(b'\xef\xbb\xbf').rstrip(b'\x00').decode('utf-8').replace("\n", "").replace("\t", "")
data_dict1 = json.loads(data_str1)
print(type(data_dict1), data_dict1)