static void Main(string[] args)
{
Console.Write("Введите лицензионный ключ: ");
string key = Console.ReadLine();
DocumentWorker doc = GetDocumentWorker(key);
doc.OpenDocument();
doc.EditDocument();
doc.SaveDocument();
Console.ReadLine();
}
static DocumentWorker GetDocumentWorker(string key)
{
DocumentWorker doc;
switch (key.ToLower())
{
case "pro": doc = new ProDocumentWorker(); break;
case "exp": doc = new ExpertDocumentWorker(); break;
default: doc = new DocumentWorker(); break;
}
return(doc);
}
