# ask for their age

myAge = input()
print('You will be ' + str( int(myAge) +1 ) + ' in a year.') #str表示string

运行时报错：

SyntaxError: Non-ASCII character '\xe8' in file p1.py on line 14, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

解释：
Python在默认状态下不支持源文件中的编码

解决：
1.全英文编写，不用中文

# ask for their age

myAge = input()
print('You will be ' + str( int(myAge) +1 ) + ' in a year.') #str means string

2.在文件头部添加如下注释码： # coding=<encoding name> 例如，可添加# coding=utf-8
或者 # encoding: utf-8
即支持中文编写