swift3 手機語言獲取

func getCurrentLanguage() -> String {
    let preferredLang = Bundle.main.preferredLocalizations.first! as NSString
    print("當(dāng)前系統(tǒng)語言:\(preferredLang)")
    
    switch String(describing: preferredLang) {
    case "en-US", "en-CN":
        return "en"http://英文
    case "zh-Hans-US","zh-Hans-CN","zh-Hant-CN","zh-TW","zh-HK","zh-Hans":
        return "cn"http://中文
    default:
        return "en"
    }
}

key：良辰樂, 本機語言