文字轉unicode較為簡單，用ord(x)即可
import re
def word2unicode(x):
uni = hex(ord(x))
uni = re.sub("^0x", "", uni).upper()
return uni
word2unicode("字") # 5B57我們在python shell中輸入unicode；python會直接幫我們進行轉換
>>> '\u5B57' # 字但是若想使用變數組合將文字型態的unicode轉換為文字，如'\u' + var的方式
>>> uni_str = '5B57'
>>> word = '\u' + uni_str
File "<stdin>", line 1
word = '\u' + uni_str
^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 0-1: truncated \uXXXX escape先用跳脫字元跳脫\u接著轉換成bytes，並解在解選時選用unicode_escape
def uni2word(uni):
word = bytes(f"\\u{uni}",'utf-8').decode(encoding='unicode_escape')
return word
uni2word('5B57') # 字