static void Main(string[] args)
{
SampleClass foo1 = new SampleClass();
IControl foo2 = (IControl)foo1;
ISurface foo3 = (ISurface)foo1;
//foo1.Paint();
foo2.Paint();
foo3.Paint();
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
}
static void Main(string[] args)
{
SampleClass fooSampleClass = new SampleClass();
IControl fooIControl = (IControl)fooSampleClass;
ISurface fooISurface = (ISurface)fooSampleClass;
Console.WriteLine($"fooSampleClass.Paint() 的執行結果");
fooSampleClass.Paint();
Console.WriteLine($"fooIControl.Paint() 的執行結果");
fooIControl.Paint();
Console.WriteLine($"fooISurface.Paint() 的執行結果");
fooISurface.Paint();
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
}