我的while或循环掷骰子不起作用

Question

这是我的代码

import random as r

Diceroll = "Y"
while Diceroll == "Y":
    Roll = r.randrange(1,7)
    print(Roll)
    Diceroll  = input("Would you like to roll again: Y/N")
    while (Diceroll != "Y") or (Diceroll != "N"):
        Diceroll = input("Please enter either Y or N")

print("Thank you for rolling with us")

第一次打印后，它无限循环地循环播放。 Would you like to roll again我确定解决方案是显而易见的，但我找不到它。

Answer 1

对于既不是Y也不Y N输入，您需要一个更受约束的条件：

while (Diceroll != "Y") and (Diceroll != "N"):
    ...

要么

while Diceroll not in ('Y', 'N'):
    ...

Answer 2

一个简单的解决方案是：

import random as r

Diceroll = "Y"
while Diceroll == "Y" and Diceroll != "N":
    Roll = r.randrange(1,7)
    print(Roll)
    Diceroll  = input("Would you like to roll again: Y/N")


print("Thank you for rolling with us")

以下是输出：

4
Would you like to roll again: Y/NY
3
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
4
Would you like to roll again: Y/NY
1
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NN
Thank you for rolling with us

Answer 3

通过使用不正确的logical operator ，您的程序逻辑存在缺陷：

• 逻辑AND运算符：如果两个操作数均为True，则返回True，如果至少一个为False，则返回False

• 逻辑OR运算符：如果一个或两个操作数均为True，则返回True，如果两个均为False，则返回False

这就是为什么while (Diceroll != "Y") or (Diceroll != "N")在输入Y或N下返回True