Python中字节数组和16进制字符串转换方式

rec_msg = b'\x12\x55\xaa\xFF\x55\x34'
out_s = ''  
for i in range(0, len(rec_msg)):     # 获取字节数组字数据，注意引号 ' ' 之间有一个空格
    out_s = out_s + ' ' + (hex(int(rec_msg[i]))).upper()[2:].zfill(2)
print(out_s)    # >>> 12 55 AA FF 55 34

# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# Name:         MySplit
# Description:  将指定的字符串转换为大写字母并每隔2个字符用空格分割后得到一个新字符串
# Author:       Administrator
# Date:         2018/7/6
#-------------------------------------------------------------------------------
import re
import time
#待分割字符串
myStr = 'faa5fbb5fcc5fdd5010200000028000001900000000a002d00000000017d7840000003e800005fa55fb55fc55fd5'
#分割后： FA A5 FB B5 FC C5 FD D5 01 02 00 00 00 28 00 00 01 90 00 00 00 0A 00 2D 00 00 00 00 01 7D 78 40 00 00 03 E8 00 00 5F A5 5F B5 5F C5 5F D5
def mySplit1(str):
    t=''
    for i in range(len(str)/2):
        t += str[2*i:2*(i+1)] + ' '
    t = t.upper()
    return t
def mySplit2(str):
    t = str.upper()
    p = re.compile('.{1,2}')  # 匹配任意字符1-2次
    return ' '.join(p.findall(t))
def mySplit3(str):
    t = str.upper()
    return ' '.join([t[2*i:2*(i+1)] for i in range(len(t)/2)])
print('原始字符串：\n' + myStr + '\n')
print('转换后字符串：')
print('mySplit1: ' + mySplit1(myStr))
print('mySplit2: ' + mySplit2(myStr))
print('mySplit3: ' + mySplit3(myStr))
print(u'\n耗时测试:')
myStr = myStr * 100
for f in [mySplit1, mySplit2, mySplit3]:
    t = time.time()
    for i in range(10000):
        f(myStr)
    print(f.func_name + ': ' + str(time.time()-t) + ' s')

hex_string = “deadbeef”

>>> hex_data = hex_string.decode("hex")
>>> hex_data
"\xde\xad\xbe\xef"

>>> import array
>>> array.array('B', hex_data)
array.array('B', [0xDE, 0xAD, 0xBE, 0xEF])

>>> map(ord, hex_data)
[0xDE, 0xAD, 0xBE, 0xEF]

>>> bytearray(hex_data)
bytearray(b'\xde\xad\xbe\xef')

bytearray.fromhex(“de ad be ef 00”)

import binascii
a='45222e'
s=binascii.unhexlify(a)
b=[ord(x) for x in s]

data = "fef0babe"
bits = ""
for x in xrange(0, len(data), 2)
    bits += chr(int(data[x:x+2], 16))

binascii.b2a_hex(hex_data)

hex_str = ‘7468616e6b20796f752076657279206d75636821' # thank you very much!

hex = hex_str.encode(‘utf-8')

str_bin = binascii.unhexlify(hex)
str = str_bin.decode(‘utf-8')

import binascii
def hexStr_to_str(hex_str):
    hex = hex_str.encode('utf-8')
    str_bin = binascii.unhexlify(hex)
    return str_bin.decode('utf-8')
if __name__ == "__main__":
	hex_str = '7468616e6b20796f752076657279206d75636821' 
	print(hexStr_to_str(hex_str))

'a' =base16=> b'61'

import base64
hex_str = '7468616e6b20796f752076657279206d75636821' 
print(base64.b16decode(hex_str.upper()))