大侠看看,我这个程序为什么在PY2.7可以运行在3.2运行不了?
是书上的一个代码清单
# 根据给定的年月日以数字形式打印出日期
months = [
'Jaunary',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'October',
'November',
'December'
]
#以1~31作为数字结尾的列表
endings = ['st', 'nd', 'rd'] + 17 * ['th'] \
+ ['st', 'nd', 'rd'] + 7 * ['th'] \
+ ['st']
year = raw_input('Year: ')
month = raw_input('Month (1-12): ')
day = raw_input('Day (1-31): ')
month_number = int(month)
day_number = int(day)
#记得要将月份和天数减1,以获得正确的索引
month_name = months[month_number-1]
ordinal = day + endings[day_number-1]
print month_name + '' +ordinal + ', ' + year
用2.7打开正常运行,3.2打开提示错误,在最后一行的month_name显示红字,请问这是为什么?