public static void test_6()
{
ThreeDCircle d = new ThreeDCircle();
d.Draw();
((Circle)d).Draw();
Console.ReadLine();
}
static void Main(string[] args)
{
Object circle = new Manager();
Shape hexagon = new Hexagon("Krolche");
Shape threeDCircle = new ThreeDCircle();
(circle as Shape)?.Draw();
/*
* circle.Draw();
* hexagon.Draw();
* threeDCircle.Draw();
*/
}