Python记：索引操作示例：将以数指定年,月,日的日期打印出来

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months=[
    'January',
    'February',
    'March',
    'April',
    'May',
    'June',
    'July',
    'August',
    'September',
    'October',
    'November',
    'December'
    ]

endings=['st','nd','rd']+17*['th']\
         +['st','nd','rd']+7*['th']\
         +['st']

year=input('Year: ')
month=input('Month(1-12): ')
day=input('Day(1-31): ')

month_number=int(month)
day_number=int(day)

month_name=months[month_number-1]
ordinal=day+endings[day_number-1]

print(month_name+' '+ordinal+','+year)

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