46 Simple Python Exercises-Very simple exercises

 


4、Write a function that takes a character (i.e. a string of length 1) and returns True if it is a vowel, False otherwise.

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def if_vowel(a):
    a=a.lower()
    if a in('a','e','i','o','u'):
        return True
    else:
        return False
print(if_vowel('A'))


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