我的第一个Python程序从用户那里得到关于他生日的输入，并计算他或她是否是18岁。
如果字符串“check”等于from kivy.core.window import Window
...
print("Window.size={}".format(Window.size))
print("Window.height={}".format(Window.height))
print("Window.width={}".format(Window.width))
，我的while循环将不会继续;它只适用于true。为什么不呢？
True我尝试了import time
import datetime
check = "Null"
year_born = month_born = day_born = 0
while check != "True":
#or check!="true":
year_born = input("what year were you born?")
month_born = input("what month were you born?")
day_born = input("what day were you born?")
check = raw_input("your birth day is on {0}/{1}/{2}... type 'True' to confirme: ".format(day_born, month_born, year_born))
year_now = int(datetime.date.today().strftime("%Y"))
month_now = int(datetime.date.today().strftime("%m"))
day_now = int(datetime.date.today().strftime("%d"))
if (year_now - 18 > year_born) or (year_now - 18 == year_born and month_born <= month_now and day_born <= day_now):
print("You are 18+. you are allowed to enter")
else:
print("Good bye")
和while check != "True" or "true"以及while check != "True" or check != "true"。他们似乎都没有工作;它只是忽略“真实”和“真实”并保持循环。
答案 0 :(得分：1)
尝试使用.lower()对输入进行规范化。
>>> 'True'.lower() == 'true'
True
>>> 'true'.lower() == 'true'
True
>>> 'TRUE'.lower() == 'true'
True
答案 1 :(得分：0)
你用while条件做了一些奇怪的事。试试while check not in ["true","True"]: