Go语言ReverseVowelsofaString

主要是判断是不是元音字符，没啥难度，记得实际写的时候要去掉魔鬼数字

package main

import (
    "fmt"   
)

//注意考虑大小写
func isVowel(vowel rune) bool {
    if vowel == 97 || vowel == 97-32 {
        return true 
    }

    if vowel == 101 || vowel == 101-32 {
        return true 
    }

    if vowel == 105 || vowel == 105-32 {
        return true 
    }

    if vowel == 111 || vowel == 111-32 {
        return true 
    }

    if vowel == 117 || vowel == 117-32 {
        return true 
    }

    return false
}

func reverseVowels(s string) string {
    runeString := []rune(s)
    flag := false

    for from, to := 0, len(s)-1; from < to; from, to = from+1, to-1 {
        for {
            flag = isVowel(runeString[from])

            if flag || from >= to{
                break   
            }

            from++
        }   

        for {
            flag = isVowel(runeString[to])

            if flag || from >= to{
                break   
            }

            to--
        }

        runeString[from], runeString[to] = runeString[to], runeString[from]
    }

    return string(runeString)
}

func main(){
    //ans := reverseVowels("helalo")
    //ans := reverseVowels("hll")
    //ans := reverseVowels("hello")
    ans := reverseVowels("Aa")

    fmt.Println(ans)    
}