Learning python day twenty-one [of] character encoding

# Character Encoding: 
binary # Chinese development 
    ASCII: can only exist in English and Latin characters. A character occupies one byte, 8 
        GB2312: just over 6,000 Chinese characters in 1980 
            GBK1.0: save more than 20,000 characters in 1995 
                GB18030: more than 27,000 Chinese 2000 

Unicode unicode: # Universal World intermediary language 
    UTF-32: deposit a 4 bytes 
    UTF-16: a deposit account / 2 or more bytes, 65535, can store vast majority of 
    UTF-8: is a variable length byte, an English ASCII to keep it occupied with 1 byte, 3 bytes of a Chinese. 

encoding encode 
decode decode 

Python. 3 above the default Unicode 
encode while encoded into bytes of data types will 
encode decoded at the same time, converted into a string type bytes will 
b = byte type byte = = [0-255]

# __Author: "hanhankeji" 
# DATE: 2019/12/19 
Import   SYS
 Print (sys.getdefaultencoding ()) # view. 8-default encoding UTF 
S = " Tesla " 
Print (S) 
s_to_gbk = s.encode ( " GBK " )
 Print (s_to_gbk)

utf-8 
Tesla 
b '\ xcc \ xd8 \ xcb \ xb9 \ xc0 \ xad'