我如何匹配时间数据' 01/27/1998'到'%d/%m/%y'之间的格式?

我只是想显示我的生日(年月日)。 然后是ValueError 如“时间数据%r不匹配格式%r”%和 "时间数据' 01/27/1998'与格式'%d/%m/%y'不匹配" 这是我的代码

from datetime import datetime, timedelta

birthday = input('When is your birthday (dd/mm/yyyy)?')

birthday_date = datetime.strptime(birthday, "%d/%m/%y")

print('Birthday : ' + str(birthday_date))

one_day = timedelta(days=1)
birthday_eve = birthday_date - one_day
print('Day before birthday : ' + str(birthday_eve))

这是错误的细节

When is your birthday (dd/mm/yyyy)? 01/27/1998
Traceback (most recent call last):
  File "010-input_date.py", line 5, in <module>
    birthday_date = datetime.strptime(birthday, "%d/%m/%y")
  File 
"C:\Users\Kohei\AppData\Local\Programs\Python\Python38\lib\_strptime.py", 
line 568,
in _strptime_datetime
    tt, fraction, gmtoff_fraction = _strptime(data_string, format)
  File 
"C:\Users\Kohei\AppData\Local\Programs\Python\Python38\lib\_strptime.py", 
line 349,
in _strptime
    raise ValueError("time data %r does not match format %r" %
ValueError: time data ' 01/27/1998' does not match format '%d/%m/%y'

问题来源StackOverflow 地址：/questions/59386288/how-do-i-have-to-match-the-format-between-time-data-01-27-1998-to-d-m-y