py：中文问题

常常遇到：

  File "test.py", line 2
SyntaxError: Non-ASCII character '\xe4' in file test.py on line 2, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details

ALL u NEED

#!/usr/bin/python
# -*- coding: UTF-8 -*-
 
print "你好，世界";