如何检查这是否属于哪个列表

Question

我问如何检查哪个列表属于用户输入。场景：我有2个列表，一个用于元音，一个用于常量，用户输入一个字母以确定它是否是常量元音，但我不知道如何检查它是那个还是那个（验证）。 / p>

vowels = ['A','E','I'] # First list
constants = ['B','C','D'] # Second List

userinput = input('Type in letter which you want to check to whether it is a vowel or constant: ') # User types in the letter Which he wants to know to which category does it belong

Answer 1

if userinput in vowels:
   # it's a vowel
   ...
elif userinput in consonants:
   # it's a consonant
   ...
else:
   # it's neither
   ...