C# 設計模式之 策略模式 樣本

封裝演算法

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace DesignPytternDemo{    /// <summary>    /// 策略模式    /// </summary>    public abstract class BaseStategy    {        public virtual int GetTicketPrice(int price)        {            return price;        }    }    public class CommonPersonStrategy : BaseStategy    {        public override int GetTicketPrice(int price)        {            return base.GetTicketPrice(price);        }    }    public class StudentStrategy : BaseStategy    {        public override int GetTicketPrice(int price)        {            return price / 2;        }    }    public class Context    {        private BaseStategy _context;        public Context(string personType)        {            switch (personType)            {                case "c":                    _context = new CommonPersonStrategy();                    break;                case "s":                    _context = new StudentStrategy();                    break;                default:                    break;            }        }        public int GetTicketPrice(int price)        {            return this._context.GetTicketPrice(price);        }    }}

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