python3 bytes与hex字符串互转

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])