Python字符串比较 - 元音

时间:2015-03-06 07:53:45

标签: python string compare

我试图编写一个Python函数,它接受两个字符串作为参数,并返回它们是否具有相同的元音(数量并不重要)。

因此('确实'' bed')应该返回true,但('确实',#39; irate')应该返回false 。

我坚持这种相当恐怖的尝试......

def vocalizer(string_a,string_b):
vowels = ['a', 'e', 'i', 'o', 'u']
result = ''
result_2 = ''
for character in string_a:
    if character in vowels:
       result = result + character
       for item in string_b:
            if item in vowels:
               result_2 = result_2 + item
               for vowel in result:
                    if vowel not in list(result_2):
                       return False
                    else:
                       if vowel in list(result_2):
                          return True

4 个答案:

答案 0 :(得分:4)

简短而富有表现力:

def keep_only_vowels(s):
    vowels = ('a', 'e', 'i', 'o', 'u')
    return (c for c in s.lower() if c in vowels)

def vocalizer(s1, s2):
    return set(keep_only_vowels(s1)) == set(keep_only_vowels(s2))

答案 1 :(得分:2)

我会使用set intersection从每个字符串中提取元音。像这样:

all_vowels = set('aeiou')

def vowel_set(s):
    return all_vowels.intersection(s.lower())

def same_vowels(s1, s2):
    return vowel_set(s1) == vowel_set(s2)

print same_vowels('deed', 'bed')
print same_vowels('indeed', 'irate')
print same_vowels('DEAD', 'earnest')
print same_vowels('blue', 'ICE')

<强>输出

True
False 
True
False 

答案 2 :(得分:1)

您自己的代码可以很容易地改进,因为您的一般策略是正确的:

def vocalizer(string_a,string_b):
    vowels = ['a', 'e', 'i', 'o', 'u']
    result = ''
    result_2 = ''
    for character in string_a:
       if character in vowels:
           result += character
    for item in string_b:
        if item in vowels:
            result_2 += item

    result = set(list(result))
    result_2 = set(list(result_2))
    #print("result= {}".format(result))
    #print("result_2= {}".format(result_2))
    if result == result_2:
        return True
    else:
        return False

当您去掉辅音的单词时,您可以简单地从字符串中创建一个列表,然后通过将它们转换为集合来删除重复的元素。最后,您可以比较这些集合,看看它们是否相等。例如:

>>> vocalizer ('indeed','irate')
result= {'i', 'e'}
result_2= {'i', 'e', 'a'}
False
>>> vocalizer ('indeed','ie')
result= {'i', 'e'}
result_2= {'i', 'e'}
True
>>> 

答案 3 :(得分:0)

通过重新模块。

>>> def checkvow(x, y):
        return set(i.lower() for i in re.findall(r'(?i)[aeiou]', x)) == set(i.lower() for i in re.findall(r'(?i)[aeiou]', y))

>>> print(checkvow('deed', 'bed'))
True
>>> print(checkvow('indeed', 'irate'))
False
>>> print(checkvow('DEAD', 'earnest'))
True
>>> print(checkvow('blue', 'ICE'))
False