go语言reversevowelsofastring

Go语言ReverseVowelsofaString

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)
}