Python3 bytes与hex字符串之间相互转换

环境:Python 3.6

 

1、字符串转bytes

'''
string to bytes
eg:
'0123456789ABCDEF0123456789ABCDEF'
b'0123456789ABCDEF0123456789ABCDEF'
'''
def stringTobytes(str):
return bytes(str,encoding='utf8')

2、bytes转字符串

'''
bytes to string
eg:
b'0123456789ABCDEF0123456789ABCDEF'
'0123456789ABCDEF0123456789ABCDEF'
'''
def bytesToString(bs):
return bytes.decode(bs,encoding='utf8')

3、十六进制字符串转bytes

'''
hex string to bytes
eg:
'01 23 45 67 89 AB CD EF 01 23 45 67 89 AB CD EF'
b'\x01#Eg\x89\xab\xcd\xef\x01#Eg\x89\xab\xcd\xef'
'''
def hexStringTobytes(str):
str = str.replace(" ", "")
return bytes.fromhex(str)
# return a2b_hex(str)

4、bytes转十六进制字符串

'''
bytes to hex string
eg:
b'\x01#Eg\x89\xab\xcd\xef\x01#Eg\x89\xab\xcd\xef'
'01 23 45 67 89 AB CD EF 01 23 45 67 89 AB CD EF'
'''
def bytesToHexString(bs):
# hex_str = ''
# for item in bs:
# hex_str += str(hex(item))[2:].zfill(2).upper() + " "
# return hex_str
return ''.join(['%02X ' % b for b in bs])

posted @ 2019-01-04 12:18  天道酬勤DW  阅读(14764)  评论(0编辑  收藏  举报