修改文件: _posts/2016-10-30-reverse-vowels-of-a-string.md

Author: lanyuanxiaoyao

_posts/2016-10-30-reverse-vowels-of-a-string.md

@@ -6,6 +6,10 @@ categories: LeetCode
 tags: [LeetCode,Easy,字符串处理,堆栈]
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+* content
+{:toc}
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 >Write a function that takes a string as input and reverse only the vowels of a string.
 **Note:**The vowels does not include the letter "y".
 写一个函数把字符串中的元音字母的顺序调转，‘Y’不是一个元音字母