C#事件基础模型代码

代码1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;namespace 事件1
{internal class Program{static void Main(string[] args){Timer timer =new Timer();//事件拥有者timer.Interval = 1000;Boy boy =new Boy();//事件响应者timer.Elapsed += boy.Action;//订阅//Elapsed--事件timer.Start();Console.ReadKey();}}class Boy{internal void Action(object sender, ElapsedEventArgs e)//事件处理{Console.WriteLine("JUMP");}}}

运行程序：一秒打印一次 "JUMP"

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代码2

添加引用 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace 事件2
{internal class Program{static void Main(string[] args){Form form=new Form();//事件拥有者Controller controller=new Controller(form);//事件响应者form.ShowDialog();}}class Controller {private Form form;//Forms类型的字段public Controller(Form form)//构造函数{if (form != null){this .form = form;this.form.Click += this.FormClick;//订阅//form.Click--事件}}private void FormClick(object sender, EventArgs e){this.form.Text = DateTime.Now.ToString();//事件处理}}
}

运行结果：点击窗口---弹出时间显示