适用于 iOS 7 AVSpeechSynthesisVoice 的 BCP-47 语音代码有哪些？

今天我对 iOS 7 中提供的语音合成功能感到非常兴奋。

我想选择男声（OSX 中默认为 alex）。

我不知道他的 BCP-47 代码是什么，顺便说一句，如何获取所有语音代码的完整列表

iOS 8 添加了希伯来语，iOS 9 到 12 中没有添加新语言：

ar-SA       Arabic      Saudi Arabia
cs-CZ       Czech       Czech Republic
da-DK       Danish      Denmark
de-DE       German      Germany
el-GR       Modern Greek        Greece
en-AU       English     Australia
en-GB       English     United Kingdom
en-IE       English     Ireland
en-US       English     United States
en-ZA       English     South Africa
es-ES       Spanish     Spain
es-MX       Spanish     Mexico
fi-FI       Finnish     Finland
fr-CA       French      Canada
fr-FR       French      France
he-IL       Hebrew      Israel
hi-IN       Hindi       India
hu-HU       Hungarian       Hungary
id-ID       Indonesian      Indonesia
it-IT       Italian     Italy
ja-JP       Japanese        Japan
ko-KR       Korean      Republic of Korea
nl-BE       Dutch       Belgium
nl-NL       Dutch       Netherlands
no-NO       Norwegian       Norway
pl-PL       Polish      Poland
pt-BR       Portuguese      Brazil
pt-PT       Portuguese      Portugal
ro-RO       Romanian        Romania
ru-RU       Russian     Russian Federation
sk-SK       Slovak      Slovakia
sv-SE       Swedish     Sweden
th-TH       Thai        Thailand
tr-TR       Turkish     Turkey
zh-CN       Chinese     China
zh-HK       Chinese     Hong Kong
zh-TW       Chinese     Taiwan

编辑：以下是如何在 Swift 中打印上述内容：

func printLanguages() {
    AVSpeechSynthesisVoice.speechVoices().forEach { (voice) in
        let language = Locale.current.localizedString(forLanguageCode: voice.language)!
        let components = Locale.components(fromIdentifier: voice.language)
        let country = Locale.current.localizedString(forRegionCode: components["kCFLocaleCountryCodeKey"]!)!
        print("\(voice.language) \t \(language) \t\t \(country)")
    }
}

您需要导入AVFoundation