簡單事件

兩個類之間交互

 1 using System;
 2 
 3 namespace Event
 4 {
 5 class Program
 6 {
 7 static void Main(string[] args)
 8 {
 9 var a = new A();
10 Program p = new Program();
11 a.Events += p.Message;
12 a.ZiDuanA();
13 Console.ReadLine();
14 }
15 
16 private void A_Events(string a)
17 {
18 Console.WriteLine(a);
19 }
20 
21 public void Message(string a)
22 {
23 Console.WriteLine("事件"+a);
24 }
25 }
26 
27 class A
28 {
29 public delegate void Event(string a);
30 public event Event Events;
31 public void ZiDuanA()
32 {
33 Events("輸入A");
34 }
35 }
36 }