如何获取手机当前是什么语言？

Environment.envProp('languageCode', 'zh');// 将设备的当前语言存入AppStorage
@StorageProp("languageCode") languageCode:string = "zh"//通过@StorageProp获取当前手机的语言，默认中文zh
aboutToAppear(): void {
  console.log("=======languageCode:"+this.languageCode)//打印当前语言
}