变量具有多个==语句

Question

我目前正在学习Python 3，并且到目前为止，它已经如雨后春笋般涌现。 这个简单的骰子滚子的目标是接受用户输入，是/否，然后掷骰子。如果未达到是/否，则告诉他们答案无效，然后继续提问。

除我无法弄清楚如何接受“是”和“ y”或“否”和“ n”作为答案之外，其他所有方法都很有效。如果我添加或（answery =“ yes”或“ y”），由于某种原因，脚本会将任何答案作为掷骰子。制作列表，具有多个变量（answery1 =“是” answery2 =“ y”），添加逗号（answery =（“ yes”“ y”）等也是一样。

from random import randint


def reroll():
    answer = input("Would you like to roll the die again? Yes/No \n")
    answer = answer.lower()
    answery = "yes"
    answern = "no"

    if answer == answery:
         print(randint(0, 6))
         reroll()

    elif answer == answern:
        print("Thanks for rolling!")

    else:
        print("That's not an option.")
        reroll()


def roll():
    answer = input("Would you like to roll the die? Yes/No \n")
    answer = answer.lower()
    answery = "yes"
    answern = "no"

    if answer == answery:
         print(randint(0, 6))
         reroll()

    elif answer == answern:
        print("Thanks for rolling!")

    else:
        print("That's not an option.")
        roll()

roll()