根据用户输入的年、月、日，调整成日常日期格式，并计算用户的年龄，最后打印到屏幕上。
分析：
-
用year存放用户输入的年，用month存放月，用day存放日，用age存放年龄；
-
其中年，原样输出即可；
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月有12个，用列表
months=['January','Feburary','March','April','May','June','July','August','September','October','November','December']
endings=['st','nd','rd']+17*['th']+['st','nd','rd']+7*['th']+['st']，
其中1-3是first、second、third，
然后是17个[th]，代表的意思是4-20：
fourth、fifth、sixth、seventh、eighth、ninth、tenth、eleventh、twelfth、thirteenth、fifteenth、sixteenth、seventeenth、eighteenth、nineteenth、twentieth
然后是21-23
twenty first、twenty second、twenty third
然后是24-30
twenty fourth、twenty fifth、twenty sixth、twenty seventh、twenty eighth、twenty ninth、thirtieth
最后是thirty first；
实际的月份为months[int[month]-1]
天为day+endings[int[day]-1]；
年龄=2018-int(year)
具体代码如下：
1 #!/usr/bin/env python
2 #-*- coding:utf-8 -*-
3 months=['January','Feburary','March','April','May','June','July','August','September','October','November','December']
4 endings=['st','nd','rd']+17*['th']+['st','nd','rd']+7*['th']+['st']
5 year=raw_input('Year: ')
6 month=raw_input('MOnth(1-12):')
7 day=raw_input('Day(1-31): ')
8 month_number=int(month)-1
9 day_number=int(day)-1
10 age=2018-int(year)
11 print months[month_number]+' '+day+endings[day_number]+'.'+year
12 print "Your age is: "+str(age)