In [18]: c = '你好'                                              
 
In [20]: d = c.encode('unicode_escape')                          
 
In [21]: d                                                       
Out[21]: b'\\u4f60\\u597d' 
 
In [23]: e = d.decode('utf-8')                                   
 
In [24]: e                                                       
Out[24]: '\\u4f60\\u597d' 
 
In [25]: type(e)                                                 
Out[25]: str 
 
In [26]: f = e.encode('utf-8').decode('unicode_escape')        # 在字符串中要将Unicode字符转换未中文,需要先编码.  
 
In [27]: f                                                       
Out[27]: '你好'