Python源文件中使用UTF-8编码

测试文件hello.py：print "你好！" 运行一般都会报错：File "hello.py", line 1
SyntaxError: Non-ASCII character "xe4" in file hello.py on line 1, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details加上编码注释就能运行：# -*- coding: utf-8 -*-
print "你好！"