Chinese character: 汉
its Unicode value: U+6C49
convert 6C49 to binary: 01101100 01001001 1101100 01001001
h= "汉"
# hex to binary, unicode value
h.encode("unicode_escape")
Out[112]: b'\\u6c49' #hex decimal
int('6c49', 16)
Out[121]: 27721
bin(27721)
Out[120]: '0b110110001001001' #value of 6c49
# utf-8 value
h.encode("utf-8")
Out[113]: b'\xe6\xb1\x89'
bin(int('e6b189',16))
Out[129]: '0b111001101011000110001001'
format of UTF-8 byte sequences table:
| 1st Byte | 2nd Byte | 3rd Byte | 4th Byte | Number of Free Bits | Maximum Expressible Unicode Value |
|---|---|---|---|---|---|
| 0xxxxxxx | 7 | 007F hex (127) | |||
| 110xxxxx | 10xxxxxx | (5+6)=11 | 07FF hex (2047) | ||
| 1110xxxx | 10xxxxxx | 10xxxxxx | (4+6+6)=16 | FFFF hex (65535) | |
| 11110xxx | 10xxxxxx | 10xxxxxx | 10xxxxxx | (3+6+6+6)=21 | 10FFFF hex (1,114,111) |
our Chinese character unicode is “6c49”, 07FF<6c49<FFFF, so we should use third format to convert.
template: 1110xxxx 10xxxxxx 10xxxxxx value of 6c49 01101100 01001001 result: 11100110 10110001 10001001
