报错如下：
解决办法：
1. 去掉首行的汉字注释
SyntaxError: Non-UTF-8 code starting with '\xbb' in file D:\流畅学python\ex32.py on line 1, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details
原文：https://www.cnblogs.com/kevin-hou1991/p/14766489.html
