public static CashSuper CreateCashAccept(string type)
{
CashSuper cs = null;
switch (type)
{
case "正常收费":
cs = new CashNormal();
break;
case "满300返100":
cs = new CashReturn(300, 100);
break;
case "打8折":
cs = new CashRebate(0.8);
break;
}
return(cs);
}
static void Main(string[] args)
{
CashSuper cs = CashFactory.CreateCashAccept("打8折");
Console.WriteLine(cs.AcceptCash(600));
}