Spyder 4.1.4和python 3.8的正确验证循环
所以我的代码是:Spyder 4.1.4和python 3.8的正确验证循环,python,validation,Python,Validation,所以我的代码是: def main(): print("Press '1' to start a new dice roll calculation") print("or press '0' to end the program") #escape key validation = int(input()) #so the user can press enter while validation != 1 or va
def main():
print("Press '1' to start a new dice roll calculation")
print("or press '0' to end the program") #escape key
validation = int(input()) #so the user can press enter
while validation != 1 or validation != 0: #input validation loop with escape key
print("Press ENTER to start a new dice roll calculation")
validation = int(input())
当我出于某种原因尝试运行验证循环时,它将我带入无限循环,但当我检查教科书时(Tony Gaddis,2017),它应该是正确的。我哪里错了?它正在检查1或0是否不存在。如果键入1,则0不存在,反之亦然,因此它将始终导致错误。将
或
更改为和
,如下所示:
def main():
print("Press '1' to start a new dice roll calculation")
print("or press '0' to end the program") #escape key
validation = int(input()) #so the user can press enter
#input validation loop with escape key using AND instead of OR
while validation != 1 and validation != 0:
print("Press ENTER to start a new dice roll calculation")
validation = int(input())
如果条件应该是
和
,而不是或
。(如果他们输入1,它就不等于0,如果他们输入0,它就不等于1。所以对于或条件,是的,它是一个无限循环。)它总是非常简单的。非常感谢。