python3输出unicode

采用ord函数即可

In Python 2.x

 D:\Python27>python

 >>> chr(65)
 'A'

 >>> ord('A')
 65

 >>> unichr(20013)
 u'\u4e2d'

 >>> ord(u'\u4e2d')
 20013

 >>> ord('中')
 Traceback (most recent call last):
   File "", line 1, in
 TypeError: ord() expected a character, but string of length 2 found

 >>> chr(20013)
 Traceback (most recent call last):
   File "", line 1, in
 ValueError: chr() arg not in range(256)

 In Python  3.x

 D:\CODE\PYTHON\OPEN_JUDGE>python
 Python 3.2.5 (default, May 15 2013, 23:06:03) [MSC v.1500 32 bit (Intel)] on win32
 Type "help", "copyright", "credits" or "license" for more information.

 >>> chr(65)
 'A'

 >>> ord('A')
 65

 >>> chr(20013)
 '中'

 >>> ord('中')
 20013

 >>> ord('\u4e2d')
 20013