Solve the problem of Teem shopping in C# Facade appearance mode

This article mainly introduces the Facade appearance mode of C# design pattern to solve shopping problems in Teemall. It briefly describes the definition of appearance mode and analyzes the relevant steps and operation skills of appearance mode to solve shopping problems with specific examples. Friends in need You can refer to the following

The example of this article describes how the Facade appearance mode of the C# design pattern solves the shopping problem of Tianhe City. Share it with everyone for your reference, the details are as follows:

1. Theoretical definition

Appearance mode integrates scattered subsystems into one system , providing one-stop service.

2. Application examples

Demand description: Nie Xiaoqian and Ning Caichen are a couple who are wealthy and peaceful. Live in a relatively remote small village.
Today, the two came to the big city Guangzhou for the first time. They heard that Tianhe City provides one-stop service, unlike small cities where you have to run around to buy something.
In one place, you can buy the clothes, computers, shoes, and iPhones you want, and you can also watch blockbuster movies,
eat ice cream, learn real kung fu, and buy cosmetics and jewelry. Tianhe City is indeed a treasure.
Ok, watch while walking.

3. Specific coding

1.Adidas

##

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 阿迪达斯
  /// </summary>
  public class Adidas
  {
    public void Serivce(string something) {
      Console.WriteLine("在阿迪达斯购买了： "+something);
    }
  }
}

2.Feiyang Cinema

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 飞扬影城
  /// </summary>
  public class FeiYangMovie
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在飞扬影城看了一部电影： " + something);
    }
  }
}

3. Gome Electric

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 国美电器
  /// </summary>
  public class GoMe
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在国美电器 买了： " + something);
    }
  }
}

4.Haagen-Dazs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 哈根达斯
  /// </summary>
  public class HaagenDaz
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在哈根达斯 买了： " + something);
    }
  }
}

5. Real Kung Fu

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 真功夫
  /// </summary>
  public class KungFu
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在真功夫 吃了： " + something);
    }
  }
}

6. Luk Fook Jewelry

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 六福珠宝
  /// </summary>
  public class LukFook
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在六福珠宝 买了： " + something);
    }
  }
}

7. Nike

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 耐克
  /// </summary>
  public class NIKE
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在耐克店 买了： " + something);
    }
  }
}

8.ONLY

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// ONLY时装
  /// </summary>
  public class ONLY
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在ONLY时装 买了： " + something);
    }
  }
}

9.Suning Appliance

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 苏宁电器
  /// </summary>
  public class Suning
  {
    public void Serivce(string something)
    {
      Console.WriteLine("在苏宁电器 买了： " + something);
    }
  }
}

10.Veromoda international fashion brand

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// Veromoda国际时装品牌
  /// </summary>
  public class Veromoda
  {
    public void Serivce(string something)
    {
      Console.WriteLine(something);
    }
  }
}

11.Consumer

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 消费店子
  /// </summary>
  public enum ShopOption
  {
    Adidas = 1, DKNY = 2, GoMe = 3,
    NIKE = 4, Suning = 5, Veromoda = 6,
    FeiYangMovie = 7, HaagenDaz = 8, LukFook = 9, KungFu = 10
  }
  /// <summary>
  /// 消费单
  /// </summary>
  public class Bill {
    /// <summary>
    /// 要去的消费店
    /// </summary>
    public ShopOption Item { get; set; }
    /// <summary>
    /// 去这个店要买啥
    /// </summary>
    public string Something { get; set; }
  }
  public class Consumer
  {
    /// <summary>
    /// 消费单
    /// </summary>
    public IList<Bill> Items { get; set; }
    /// <summary>
    /// 姓名
    /// </summary>
    public string Name { get; set; }
  }
}

12. Tianhe City---one-stop service

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
namespace Com.Design.Gof.Facade
{
  /// <summary>
  /// 天河城
  /// </summary>
  public class TeeMall
  {
    private static readonly Assembly assembly = Assembly.LoadFile(AppDomain.CurrentDomain.BaseDirectory + @"\Com.Design.Gof.dll");
    /// <summary>
    /// 一站式服务
    /// </summary>
    /// <param name="consumer"></param>
    public void OfferService(Consumer consumer) {
      Console.WriteLine("我是： " + consumer.Name+",不差钱，今天来天河城玩： ");
      Console.WriteLine("----------------------------------------------");
      foreach (Bill item in consumer.Items)
      {
        object obj= assembly.CreateInstance("Com.Design.Gof.Facade." + item.Item);
        MethodInfo info = obj.GetType().GetMethod("Serivce");
        info.Invoke(obj, new object[] { item.Something });
      }
      Console.WriteLine();
    }
  }
}

13. Main function call

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Com.Design.Gof.Facade;
namespace Com.Design.Gof.Test
{
  class Program
  {
    static void Main(string[] args)
    {
      //天河城购物中心
      TeeMall TeeMall = new TeeMall();
      //消费者 1
      Consumer consumer = new Consumer
      {
        Name="聂小倩",
        //消费单
        Items = new List<Bill> {
         new Bill{ Item=ShopOption.Adidas, Something="运动服"},
         new Bill{ Item=ShopOption.GoMe, Something="苹果IPhone智能手机"},
         new Bill{ Item=ShopOption.FeiYangMovie, Something="<冰河世纪 4>"},
         new Bill{ Item=ShopOption.KungFu, Something="香菇炖鸡"},
          new Bill{ Item=ShopOption.LukFook, Something="金项链"},
        }
      };
      TeeMall.OfferService(consumer);
      //消费者 2
      consumer = new Consumer
      {
        Name = "宁采臣",
        //消费单
        Items = new List<Bill> {
         new Bill{ Item=ShopOption.FeiYangMovie, Something="《太空一号》"},
         new Bill{ Item=ShopOption.Veromoda, Something="然后去了Veromoda时装，买了一套服装"},
         new Bill{ Item=ShopOption.HaagenDaz, Something="买了一雪糕"},
         new Bill{ Item=ShopOption.Suning, Something="在苏宁看买平板电脑"},
        }
      };
      TeeMall.OfferService(consumer);
      Console.ReadKey();
    }
  }
}

14. Running results

15. Summary

Teemall TeeMall should theoretically include references to all shopping malls,

reflection is used here to avoid this One action.

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