hex to str · python

在Python操作数据内容时，多数情况下可能遇到下面3种类型的数据处理： **hexstring** 如：'1C532145697A8B6F' **str** 如：'\x1C\x53\x21\x45\x69\x7A\x8B\x6F' **list** 如：[0x1C, 0x53, 0x21, 0x45, 0x69, 0x7A, 0x8B, 0x6F] 各种第三方模块（如pyDes），或者自己写的接口中，可能存在由于类型不统一需要在这3种数据中来回切换的情况。需要用到的核心的方法如下： list() 将对象转换为list str() 将对象转换为str bytearray() 将对象转换为bytearray bytearray.fromhex() 将对象从hexstring转换为bytearray binascii.b2a_hex() 将对象从str转换为hexstring # 1\. 整形列表转str 如：[0x53, 0x21, 0x6A] -> '\x53\x21\x6a' 方法：list -> bytearray -> str **[python]** [view plain](http://blog.csdn.net/diaoxuesong/article/details/72123415# "view plain") [copy](http://blog.csdn.net/diaoxuesong/article/details/72123415# "copy") 1. x = [0x53, 0x21, 0x6A] 2. y = str(bytearray(x)) # 2\. str转整形列表如：'\x53\x21\6a' -> [0x53, 0x21, 0x6A] 方法：逐个字符转成十进制 **[python]** [view plain](http://blog.csdn.net/diaoxuesong/article/details/72123415# "view plain") [copy](http://blog.csdn.net/diaoxuesong/article/details/72123415# "copy") 1. x = '\x53\x21\x6a' 2. y = [ord(c) for c in x] # 3\. 整形列表转换为hex string 如： [0x53, 0x21, 0x6A] -> '53216A' 方法：list -> bytearray -> str -> hexstring **[python]** [view plain](http://blog.csdn.net/diaoxuesong/article/details/72123415# "view plain") [copy](http://blog.csdn.net/diaoxuesong/article/details/72123415# "copy") 1. import binascii 2. x = [0x53, 0x21, 0x6A] 3. y = str(bytearray(x)) 4. z = binascii.b2a_hex(y) # 4\. hex string转换为整形列表如： '53216A' -> [0x53, 0x21, 0x6A] 方法：hexstring -> bytearray -> list **[python]** [view plain](http://blog.csdn.net/diaoxuesong/article/details/72123415# "view plain") [copy](http://blog.csdn.net/diaoxuesong/article/details/72123415# "copy") 1. x = '53216A' 2. y = bytearray.fromhex(x) 3. z = list(y) # 5\. hex string转换为str 如： '53216A' -> '\x53\x21\x6A' 方法：hexstring -> bytearray -> str **[python]** [view plain](http://blog.csdn.net/diaoxuesong/article/details/72123415# "view plain") [copy](http://blog.csdn.net/diaoxuesong/article/details/72123415# "copy") 1. x = '53216A' 2. y = bytearray.fromhex(x) 3. z = str(y) ## Python3中bytes和HexStr之间的转换 1. ByteToHex的转换 def ByteToHex( bins ): """ Convert a byte string to it's hex string representation e.g. for output. """ return ''.join( [ "%02X" % x for x in bins ] ).strip() 2. HexToByte的转换 def HexToByte( hexStr ): """ Convert a string hex byte values into a byte string. The Hex Byte values may or may not be space separated. """ return bytes.fromhex(hexStr) 3. 测试 __hexStr1 = "FFFFFF5F8121070C0000FFFFFFFF5F8129010B" __hexStr2 = "FF FF FF 5F 81 21 07 0C 00 00 FF FF FF FF 5F 81 29 01 0B" __byteStr = "\xFF\xFF\xFF\x5F\x81\x21\x07\x0C\x00\x00\xFF\xFF\xFF\xFF\x5F\x81\x29\x01\x0B" if __name__ == "__main__": print( "\nHex To Byte and Byte To Hex Conversion") print( "Test 1 - ByteToHex - Passed: ", ByteToHex( __byteStr ) == __hexStr2) print( "Test 2 - HexToByte - Passed: ", HexToByte( __hexStr1 ) == __byteStr) print( "Test 3 - HexToByte - Passed: ", HexToByte( __hexStr2 ) == __byteStr) # turn a non-space separated hex string into a space separated hex string! print( "Test 4 - Combined - Passed: ", \ ByteToHex( HexToByte( __hexStr1 ) ) == __hexStr2)