static void Main(string[] args)
{
IFactory factory = new StudentFactory();
LeiFeng leiFeng = factory.CreateLeiFeng();
leiFeng.Wash();
leiFeng.Sweep();
leiFeng.Cook();
}
public static LeiFeng CreateLeiFeng(string type)
{
LeiFeng result = null;
switch (type)
{
case "Undergraduate":
result = new Undergraduate();
break;
case "Volunteer":
result = new Volunteer();
break;
}
return(result);
}
