UTF-8编码与汉字的相互转换

$ python
>>> '说明'
'\xe8\xaf\xb4\xe6\x98\x8e'
>>> 
>>> 
>>> print '\xe8\xaf\xb4\xe6\x98\x8e'
说明
>>> 

做双语切换
>>> s='Low'
>>> s.replace(' ','').upper()
'LOW'

#define LOW "Low"
#define LOW "\xe4\xbd\x8e"