private void btnOk_Click(object sender, EventArgs e)
{
double totalPrices = 0d;
CashContext csuper = new CashContext(cbxType.SelectedItem.ToString());
totalPrices = csuper.GetResult(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();
}
static void Main(string[] args)
{
Console.Write("//策略模式\n");
string output = "";
double Price = 350.0d;
double Number = 10.0d;
double totalPrice = 0.0d;
//CashContext csuper = new CashContext("正常收費");
//CashContext csuper = new CashContext("滿300送100");
CashContext csuper = null;
Console.Write("#1 正常收費\n");
csuper = new CashContext("正常收費");
totalPrice = csuper.GetResult(Price * Number);
total += totalPrice;
output = string.Format("Unit Price:{0:###.###}\nQuantity:{1:###}\nSum:{2:###.###}\n\n", Price, Number, total);
Console.Write(output);
Console.Write("#2 打八折\n");
csuper = new CashContext("打八折");
total = 0.0d;
totalPrice = csuper.GetResult(Price * Number);
total += totalPrice;
output = string.Format("Unit Price:{0:###.###}\nQuantity:{1:###}\nSum:{2:###.###}\n\n", Price, Number, total);
Console.Write(output);
Console.Write("#3 滿300送100\n");
csuper = new CashContext("滿300送100");
total = 0.0d;
totalPrice = csuper.GetResult(Price * Number);
total += totalPrice;
output = string.Format("Unit Price:{0:###.###}\nQuantity:{1:###}\nSum:{2:###.###}\n", Price, Number, total);
Console.Write(output);
Console.Read();
}
