static void Main(string[] args)
{
DocumentWorker doc = new DocumentWorker();
Console.WriteLine("Введите ключ");
string inputKey = Console.ReadLine();
if (inputKey == "pro")
{
doc = new ProDocumentWorker();
Print(doc);
}
else if (inputKey == "exp")
{
doc = new ExpertDocumentWorker();
Print(doc);
}
else
{
Print(doc);
}
Console.ReadLine();
}
static public void Print(DocumentWorker doc)
{
doc.OpenDocument();
doc.EditDocument();
doc.SaveDocument();
}