python - code to figure out lowercase vowels, python question

Question

I have a question in my home work assignment, The user enters a string of all lowercase letters. The python program is suppose to tell them whether or not the string contains a lowercase vowel somewhere

, the problem I have is when i enter lets say more then letter I they all comeback wrong. Like if I enter (ab) it will come back saying all of there are no lower case vowels. If my text has at least one vowel, it should print "Contains a lowercase vowel!"

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my OG code in case my picture does not load

x = input("Enter a string of lowercase letters: " )

c = ('a','e','i','o','u')

for c in x:

if x in (c):

     print ("Contains a lowercase vowel!")

else:
    print ("Doesn't contain a lowercase vowel.")

标签： python

Answer 1

在 Python 中有几种方法可以做到这一点。

所有方法都依赖于 Python 中的字符串是可迭代的这一事实（即，您可以循环遍历它们）。

给定这个字符串：

>>> st='xyzabc'

您可以使用 any 检查这些字符中的任何一个是否在字符串'aeiou'中：

>>> any(c in 'aeiou' for c in st)
True

（any 函数内的部分是 Python理解——你需要用 Python 理解的东西）

您还可以使用集合交集：

>>> set('aeiou') & set(st)
{'a'}

或过滤的列表理解：

>>> [c for c in st if c in 'aeiou']
['a']