public CashContext(string type)
{
switch (type)
{
case "正常收費":
CashNormal cs0 = new CashNormal();
cs = cs0;
break;
case "滿300送100":
CashReturn cr1 = new CashReturn("300", "100");
cs = cr1;
break;
case "打八折":
CashRebate cr2 = new CashRebate("0.8");
cs = cr2;
break;
default:
CashNormal csd = new CashNormal();
cs = csd;
break;
}
}
//策略与简单工厂结合
public CashContext(string type)
{
switch (type)
{
case "正常收费":
CashNormal cs0 = new CashNormal();
cs = cs0;
break;
case "满300返100":
CashReturn cr1 = new CashReturn("300", "100");
cs = cr1;
break;
case "打8折":
CashRebate cr2 = new CashRebate("0.8");
cs = cr2;
break;
}
}