public static void Main(string[] args)
{
var sub = new SubClass();
BaseClass b = sub;
I1 i = sub;
sub.Write();
b.Write();
i.Write();
}
static void Main(string[] args)
{
MyClass myClass = new MyClass();
I1 i1 = myClass;
I2 i2 = myClass;
i1.Write();
i2.Write();
Write(myClass);
}
public static void Write(I1 i1)
{
i1.Write();
}