//public void Change(double totalmoner)
//{
// while (true)
// {
// Console.WriteLine("请输入付款金额：");
// double Payment = double.Parse(Console.ReadLine());
// if (Payment - totalmoner >= 0)
// {
// Console.WriteLine($"找您{Payment - totalmoner}");
// break;
// }
// else
// {
// Console.WriteLine("您输入的金额不足！");
// Console.WriteLine("请继续付款");
// Payment = double.Parse(Console.ReadLine());
// }
// }
//}
/// <summary>
/// 根据用户的输入，选择打折的方式
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public CalFather Cf(string input)
{
CalFather c = null;
switch (input)
{
case "1":
c = new CalNone();
break;
case "2":
c = new CalRate(0.9);
break;
case "3":
c = new CalRate(8.5);
break;
case "4":
c = new CalMN(300, 50);
break;
case "5":
c = new CalMN(500, 100);
break;
}
return(c);
}
/// <summary>
/// 根据用户选择的打折方式返回一个打折对象
/// </summary>
/// <param name="input">用户的选择</param>
/// <returns>返回的父类对象，但是里面装的是子类对象</returns>
public CalFather GetCal(string input)
{
CalFather cal = null;
switch (input)
{
case "1": cal = new CalNormal();
break;
case "2": cal = new CalRate(0.9);
break;
case "3": cal = new CalRate(0.85);
break;
case "4": cal = new CalMN(300, 50);
break;
case "5": cal = new CalMN(500, 100);
break;
}
return(cal);
}