/// <summary>
/// normal object create
/// </summary>
static void ObjectCreate()
{
//normal invoke
IPerson man = new Man();
man.Name = "yoolo";
man.Speak();
System.Console.WriteLine("***********************");
//base-objectFactory invoke
IPerson man2 = PersonFactory.MakePerson();
man2.Name = "Demi";
man2.Speak();
}