private void btnOk_Click(object sender, EventArgs e)
{
CashSuper csuper = CashFactory.createCashAccept(cbxType.SelectedItem.ToString());
double totalPrices = 0d;
totalPrices = csuper.acceptCash(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text));
total = total + totalPrices;
lbxList.Items.Add("单价：" + txtPrice.Text + "数量：" + txtNum.Text + " " + cbxType.SelectedItem + "合计：" + totalPrices.ToString());
lblResult.Text = total.ToString();
}
private static void NewMethod()
{
//input 3 parameter
var cs = CashFactory.CreateCashAccept("300 minus 100");
const double txtPrice = 600;
const int txtNum = 1;
var totalPrice = cs.GetResult(txtPrice) * txtNum;
Console.WriteLine("TotalPrice " + totalPrice);
Console.ReadLine();
}
static void Main(string[] args)
{//還是工廠 CashFactory CashSuper會看到2個類別
double total = 0d;
CashSuper cs = CashFactory.createCashAccept("打8折");
double totalprice = 0d;
totalprice = cs.acceptCash(5000d) * 5;//price*num
total += totalprice;
Console.WriteLine(total);
//策略模式 只需要一個CashContext類別 收費演算法跟用戶端分離
CashContext cc = null;
cc = new CashContext("打8折");
totalprice = 0d;
totalprice = cc.GetResult(5000) * 5; //單價X數量
total += totalprice;
Console.WriteLine(total);
Console.ReadKey();
}