static void Main(string[] args)
{
PointS ps = new PointS(11);
PointC pc = new PointC(11);
PointS1 ps1 = new PointS1(17);
TestStruct(ps1);
TestClass(pc);
WriteLine("PS1.X = " + ps1.Pc.X);
WriteLine("PS.X = " + ps.X);
WriteLine("PC.X = " + pc.X);
}
static void TestClass(PointC pc)
{
pc.X = 25;
}