Python实现 "反转字符串中的元音字母" 的方法

#coding=utf-

def reverseVowels(s):

    """

    :type s: str

    :rtype: str

    """

    sStr = list(s)

    voList = {'a':, 'A':, 'e':, "E":, 'i':, "I":, 'o':, 'O':, 'u':, 'U':}

    front =

    length = len(sStr)

    back = length -

    while front < back:

        while front < length and sStr[front] not in voList:

            front +=

        while back >=  and sStr[back] not in voList:

            back -=

        if front < back:

            sStr[front], sStr[back] = sStr[back], sStr[front]

            front +=

            back -=

    return "".join(sStr)

str="hello world!"

print(reverseVowels(str))

输出

hollo werld!

或

#coding=utf-

def reverseVowels(s):

    """

    :type s: str

    :rtype: str

    """

    sStr = list(s)

    voList = {'a':, 'A':, 'e':, "E":, 'i':, "I":, 'o':, 'O':, 'u':, 'U':}

    front =

    length = len(sStr)

    back = length -

    while():

        while front < length and sStr[front] not in voList:

            front +=

        while back >=  and sStr[back] not in voList:

            back -=

        if front < back:

            sStr[front], sStr[back] = sStr[back], sStr[front]

            front +=

            back -=

        else:

            break

    return "".join(sStr)

str="hello world!"

print(reverseVowels(str))

参考：

https://blog.csdn.net/qiubingcsdn/article/details/82940147