如何使用用户输入中断while循环

由夜伴歌笙发布于 2020-05-24 00:38:18

我发现很难在用户输入“ N”时中断while循环，而仅接受“ Y”。输入“ N”仍将激活第二个while循环。

如何编写这样的代码：一旦用户输入IN，while循环就会中断？先感谢您：）

choice = 'Y'
while choice == 'Y':

    choice = input('Would you like to continue? (y/n): ').upper()
    # it breaks at this point  

    while (choice != 'Y') or (choice != 'N'):
        choice = input('Please choose Y for yes, or N for no!: ').upper()

伤心过了头

2020-05-24 00:38:18

choice = 'Y'
while choice == 'Y':
    choice = input('Would you like to continue? (y/n): ').upper()
    while (choice != 'Y') and (choice != 'N'): # and, not or!
        choice = input('Please choose Y for yes, or N for no!: ').upper()

神经

2020-05-24 00:38:18

Try to add break if the received input equals to "N":

choice = 'Y'
while choice == 'Y':

    choice = input('Would you like to continue? (y/n): ').upper()
    if choice == "N":
        break

    while (choice != 'Y') and (choice != 'N'):
        choice = input('Please choose Y for yes, or N for no!: ').upper()

夜伴歌笙

这家伙很懒，什么都没留下

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