using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

        public static List<Bet> Bets = new List<Bet>();

​

        public static void Main()

        {

            //投入10元，最後拿回22元

            Bets.Add(new Bet { BillNo = "N190501001", BetAmount = 10, WinLoss = 12 });

            //投入10元，最後拿回0元

            Bets.Add(new Bet { BillNo = "N190501002", BetAmount = 10, WinLoss = 0 });

​

            //請讓CounterWithBetAmount, CounterWithoutBetAmount 實作一個 interface 裡面的 method Calcuate (*需完成項目之一)

            CounterWithBetAmount counterWithBetAmount = new CounterWithBetAmount(Bets);

            CounterWithoutBetAmount counterWithoutBetAmount = new CounterWithoutBetAmount(Bets);            

            //請依序輸出計算結果  (*需完成項目之三)

            Console.WriteLine("包含本金的加總:" + counterWithBetAmount.Calculate()+"\n"+ "不包含本金的加總:" + counterWithoutBetAmount.Calculate());

            //總結，要完成此題目，共需要實作完以下三個項目

            // 1. 幫上述的class，定義共通繼承的interface

            // 2. 將 CounterWithBetAmount、 CounterWithoutBetAmount 內的Function邏輯補上

            // 3. 分別將兩者的Calculate結果印出           

        }

​

​

    }

​

        public class Bet

        {

            public string BillNo {set;get;}

            //本金

            public decimal BetAmount {set;get;}

            //不包含本金的輸贏

            public decimal WinLoss {set;get;}

        }

        public interface CalculateInterface

        {

           decimal Calculate();

        }

​

        public class CounterWithBetAmount:CalculateInterface

        {

            private List<Bet> _bets;

            private decimal _counterwithbetAmount;

            public CounterWithBetAmount(List<Bet> bets)

            {

                _counterwithbetAmount = 0;

                _bets = bets;

            }

            //請計算 輸入參數為 List<Bet>，輸出數值包含本金的加總 (*需完成項目之二)

            public decimal Calculate()

            {

                decimal _betamount = 0;

                decimal _winloss = 0;

​

                foreach (var item in _bets)

                {

                    _betamount += item.BetAmount;

                    _winloss += item.WinLoss;

                }

                _counterwithbetAmount = _betamount + _winloss;

                return _counterwithbetAmount;

            }

        }

​

        public class CounterWithoutBetAmount:CalculateInterface

        {

            private List<Bet> _bets;

            private decimal _counterwithoutbetAmount;

            public CounterWithoutBetAmount(List<Bet> bets)

            {

                _counterwithoutbetAmount = 0;

                _bets = bets;

            }

            //請計算 輸入參數為 List<Bet>,輸出數值不包含本金的加總 (*需完成項目之二)

            public decimal Calculate()

            {

                decimal _winloss = 0;

​

                foreach (var item in _bets)

                {

                    _winloss += item.WinLoss;

                }

​

                return _winloss;

            }

        }