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package main
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import (
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"fmt"
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)
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// interface define 元音,接口中只能定义方法哦
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type VowelsFinder interface {
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FindVowels() []rune
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}
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type MyString string
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// 方法
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func (ms MyString) FindVowels() []rune {
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var vowels []rune
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for _, rune := range ms {
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if rune == 'a' || rune == 'e' || rune == 'i' || rune == 'o' || rune == 'u' {
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vowels = append(vowels, rune)
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}
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}
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return vowels
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}
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func main() {
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name := MyString("Sam Anderson")
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var v VowelsFinder
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v = name
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fmt.Printf("Vowels are %c", v.FindVowels())
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}
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