委托模拟监控设备

今天下午没事儿，写了一个模拟公司监控设备的例子，以加深自己对托管的理解。设想是某小偷去某公司行窃却被警察逮个正着。

 

    /// <summary>
    /// 事件信息类
    /// </summary>
    public class StealEvemtArgs:EventArgs
    {
        private string point=string.Empty;
        private string who=string.Empty;
        public string Point
        {
            set { point = value; }
            get{return point;}
        }

        public string Who
        {
            set { who = value; }
            get{return who;}
        }
    }

    /// <summary>
    /// 监控设备
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    public delegate void CashMonitor(Object sender,StealEvemtArgs e);

    /// <summary>
    /// 公司
    /// </summary>
    public class Company
    {
        public event CashMonitor CasStolen;//给公司装上监控设备
        private int cash=300000;//公司现金
        private readonly string address;//公司地址
        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="address">公司地址</param>
        public Company(string address)
        {
            this.address = address;
        }
        public void Stolen(int stealamount,string who)
        {
            StealEvemtArgs e = new StealEvemtArgs();
            e.Point = address;
            e.Who = who;
            cash -= stealamount;
            Console.WriteLine(address+"：有贼偷走了{0}RMB，快叫警察！", stealamount);
            CasStolen(this, e);//监控设备通知警察
        }

    }

    /// <summary>
    /// 小偷
    /// </summary>
    public class Thief
    {
        private Company company;
        private string name=string.Empty;
        private int ToSteal;
        public string Name
        {
            get { return name; }
        }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="tosteal">要偷多少呢？</param>
        /// <param name="name">姓名</param>
        /// <param name="company">作案目标，“一般人儿我不告诉他”</param>
        public Thief(int tosteal,string name,Company company)
        {
            this.company = company;
            this.ToSteal = tosteal;
            this.name=name;
        }
        public void Steal()
        {
            company.Stolen(ToSteal,name);
        }
    }

    /// <summary>
    /// 警察局在一座城市只有一家，所一定义成static
    /// </summary>
    public static class PoliceStation
    {

        public static void ReciveWarning(Object sender,StealEvemtArgs e)
        {
            Console.WriteLine("警察局：接到报警，火速赶往" + e.Point + "，抓捕"+e.Who+"！！");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Company company = new Company("XX路XX公司");//有个XX公司，在XX路
            company.CasStolen += new CashMonitor(PoliceStation.ReciveWarning);//XX公司监控设备和警察局接通
            Thief thief = new Thief(3000, "陈小二",company);//有个小贼叫陈小二
            thief.Steal();//陈小二开始工作
            Console.Read();
        }
    }