C#模擬最簡單的交通信號燈

界面大致這個樣子：

---

while循環觸發交通燈，交通燈觸發汽車的行爲。
紅綠燈5s，黃燈3s。

代碼是：console控制檯的！！！！

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace 交通信號燈模型
{
    class Program
    {
        public static string light = "";
        public static string car = "";

        static void Main(string[] args)
        {
            Console.WriteLine("交通信號燈開啓" + "\r\n");
          
            //交通信號燈變化
            while (true)
            {
                try
                {
                    RedLight();//燈觸發
                    CarDo();//車執行
                    System.Threading.Thread.Sleep(5000);//延時

                    YellowLight();
                    CarDo();
                    System.Threading.Thread.Sleep(3000);

                    GreenLight();
                    CarDo();
                    System.Threading.Thread.Sleep(5000);

                    YellowLight();
                    CarDo();
                    System.Threading.Thread.Sleep(3000);

                    Console.WriteLine();
                }
                catch (Exception e)
                {
                    throw;
                    //Console.WriteLine(e.ToString());
                }
                
            }

            Console.ReadKey();
        }

        public static void RedLight()
        {
            Console.Write("紅燈" + "  ");
            light = "red";
            
        }
        public static void GreenLight()
        {
            Console.Write("綠燈" + "  ");
            light = "green";
        }
        public static void YellowLight()
        {
            Console.Write("黃燈" + "  ");
            light = "yellow";
        }

        public static void CarDo()
        {
            if (light == "red")
            {
                Console.WriteLine("Car stop");
            }
            else if (light == "green")
            {
                Console.WriteLine("Car go");
            }
            else if (light == "yellow")
            {
                Console.WriteLine("Car maintain");
            }
        }
            
    }
}

---

升級版本：
1、面向對象封裝下，使用了接口
2、增加了東西走向的交通燈和車
3、增加了行人

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace 交通信號燈模型
{
    class Program
    {
        public static string car = "";

        static void Main(string[] args)
        {
            Console.WriteLine("交通信號燈開啓" + "\r\n");       //用線程實現有問題，面向對象的設計      //如何把模板類的東西抽象處理呢？

            LightSN lightSN = new LightSN();//南北交通燈           
            LightEW lightEW = new LightEW();//東西交通燈
            Car car = new Car();            //汽車
            People people = new People();   //行人

            //交通信號燈變化
            while (true)
            {
                try
                {                            
                    //南北
                    lightSN.RedLight();
                    car.CarDo();
                    people.PeopleDo();
                    //東西
                    lightEW.GreenLight();
                    car.CarDoEW();
                    people.PeopleEW();
                    System.Threading.Thread.Sleep(10000);//延時

                    //南北
                    lightSN.YellowLight();
                    car.CarDo();
                    people.PeopleDo();
                    //東西
                    lightEW.YellowLight();
                    car.CarDoEW();
                    people.PeopleEW();
                    System.Threading.Thread.Sleep(3000);//延時

                    //南北
                    lightSN.GreenLight();
                    car.CarDo();
                    people.PeopleDo();
                    //東西
                    lightEW.RedLight();
                    car.CarDoEW();
                    people.PeopleEW();
                    System.Threading.Thread.Sleep(10000);//延時

                    //南北
                    lightSN.YellowLight();
                    car.CarDo();
                    people.PeopleDo();
                    //東西
                    lightEW.YellowLight();
                    car.CarDoEW();
                    people.PeopleEW();
                    System.Threading.Thread.Sleep(3000);//延時

                    Console.WriteLine();
                }
                catch (Exception e)
                {
                    throw;
                    //Console.WriteLine(e.ToString());
                }
                
            }

            Console.ReadKey();
        }
           
    }

    internal interface ILight              //東西和南北方向燈的接口
    {
        void RedLight();
        void GreenLight();
        void YellowLight();     
    }
    internal interface IMoveThing       //人和各種汽車的接口
    {
        void MoveTingDo();
    }

    //實現東西和南北方向交通燈類
    public class LightSN : ILight
    {
        public void RedLight()
        {
            Console.WriteLine("南北紅燈" + "  ");
            PublicModule.light = "red";
        }
        public void GreenLight()
        {
            Console.WriteLine("南北綠燈" + "  ");
            PublicModule.light = "green";
        }
        public void YellowLight()
        {
            Console.WriteLine("南北黃燈" + "  ");
            PublicModule.light = "yellow";
        }
    }
    public class LightEW : ILight
    {
        public void RedLight()
        {
            Console.WriteLine("東西紅燈" + "  ");
            PublicModule.lightwe = "red";

        }
        public void GreenLight()
        {
            Console.WriteLine("東西綠燈" + "  ");
            PublicModule.lightwe = "green";
        }
        public void YellowLight()
        {
            Console.WriteLine("東西黃燈" + "  ");
            PublicModule.lightwe = "yellow";
        }
    }
    //實現汽車和人的類
    public class Car : IMoveThing
    {
        public void MoveTingDo()
        {
        }
        public void CarDo()
        {
            if (PublicModule.light == "red")
            {
                Console.WriteLine("Car stop");
            }
            else if (PublicModule.light == "green")
            {
                Console.WriteLine("Car go");
            }
            else if (PublicModule.light == "yellow")
            {
                Console.WriteLine("Car maintain");
            }
        }
        public void CarDoEW()
        {
            if (PublicModule.lightwe == "red")
            {
                Console.WriteLine("Car stop");
            }
            else if (PublicModule.lightwe == "green")
            {
                Console.WriteLine("Car go");
            }
            else if (PublicModule.lightwe == "yellow")
            {
                Console.WriteLine("Car maintain");
            }
        }
    }
    public class People : IMoveThing
    {
        public void MoveTingDo()
        {
        }
        public void PeopleDo()
        {
            if (PublicModule.light == "red")
            {
                Console.WriteLine("People stop");
            }
            else if (PublicModule.light == "green")
            {
                Console.WriteLine("People go");
            }
            else if (PublicModule.light == "yellow")
            {
                Console.WriteLine("People maintain");
            }
        }
        public void PeopleEW()
        {
            if (PublicModule.lightwe == "red")
            {
                Console.WriteLine("People stop");
            }
            else if (PublicModule.lightwe == "green")
            {
                Console.WriteLine("People go");
            }
            else if (PublicModule.lightwe == "yellow")
            {
                Console.WriteLine("People maintain");
            }
        }
    }
    public class Bus : IMoveThing
    {
        public void MoveTingDo()
        { }
    }
}

調用的公共類

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 交通信號燈模型
{
    class PublicModule
    {
        public static string light = "";
        public static string lightwe = "";
    }
}