HarmonyOS ArkTS线程安全问题

static getInstance(): myData 
{ 
  let manager: myData = AppStorage.get("myData") as myData; 
  if (!manager) { 
    AppStorage.setOrCreate("myData", new myData(); 
  } 
  return AppStorage.get("myData") as myData; 
}

// 获取交互类单例 
public static getInstance(): Advertising { 
  if (Advertising.instance == null) { 
    Advertising.instance = new Advertising(); 
  } 
  return Advertising.instance; 
}