pypi有現(xiàn)成的庫emoji來處理emoji字符串
安裝：
pip install emoji --upgrade
eg：
>> import emoji
>> print(emoji.emojize('Python is :thumbs_up:'))
Python is ??
>> print(emoji.emojize('Python is :thumbsup:', use_aliases=True))
Python is ??
>> print(emoji.demojize('Python is ??'))
Python is :thumbs_up:
