// ClassInheritanApp
private static void ClassInheritanApp()
{
// Test virtual method and override method
WhiteHuman tom = new WhiteHuman();
// Convert tom to base class(将 ton 强制转换成基类)
Human ren = (Human)tom;
tom.complexion = "white";
tom.LoveFood();
tom.Complexion();
ren.LoveFood();
Human ren2 = new Human();
ren2.LoveFood();
}
public static HuMan CreateHuman(HumanEnum humanEnum)
{
HuMan huMan = null;
switch (humanEnum)
{
case HumanEnum.Black:
huMan = new BlackHuman();
break;
case HumanEnum.White:
huMan = new WhiteHuman();
break;
default:
throw new NullReferenceException();
}
return(huMan);
}