1  public class Program 2     { 3        public event EventHandler ehdl=null; 4         public Program()  5         { 6             ehdl += Program_ehdl; 7         } 8  9         void Program_ehdl(object sender, EventArgs e)10         {11             var test=e as TestEventArgs;12             Console.WriteLine("姓名：{0},年龄：{1},性别：{2}",test.Name,test.Age,test.Gender);13         }14 15        16         static void Main(string[] args)17         {18             Program p = new Program();19             p.Fly();20             21             Console.ReadKey();22         }23 24         private  void Fly()25         {26             TestEventArgs test = new TestEventArgs();27             test.Name = "张三";28             test.Age = "15";29             test.Gender="男";30             ehdl(this, test);31            32         }33       34     }35     public class TestEventArgs : EventArgs 36     {37         public string Name { get; set; }38         public string Age { get; set; }39         public string Gender { get; set; }40     }