使用反射令2个事件在不知道方法名的情况下使用同一个处理方法

今天在社区碰到了一个比较有意思的问题，将button1的Click事件与button2的Click事件在不知道方法名的情况下如何使用同一个处理方法，我之前已经解答了一个类似的问题，是要用到委托列表类实现的，上代码：

  private void Form1_Load(object sender, EventArgs e)
         {
             Button btn1 = new Button();
             btn1.Text = "button1";
             btn1.Click += new EventHandler(delegate(object s, EventArgs e2) { MessageBox.Show(s.ToString()); });
             btn1.Name = "btn1";
             btn1.Location = new Point(10, 10);
             this.Controls.Add(btn1);
             Button btn2 = new Button();
             btn2.Text = "button2";
             btn2.Name = "btn2";
             btn2.Location = new Point(10, 30);
             Type t = btn1.GetType();
             PropertyInfo pi = t.GetProperty("Events", BindingFlags.Instance | BindingFlags.NonPublic);//获取button1的事件属性
             EventHandlerList ehl = (EventHandlerList)pi.GetValue(btn1, null);//获取button1的委托列表
             FieldInfo fieldInfo = (typeof(Control)).GetField("EventClick", BindingFlags.Static | BindingFlags.NonPublic);
             Delegate d = ehl[fieldInfo.GetValue(null)];
             btn2.Click += (EventHandler)d;
             this.Controls.Add(btn2);
         }

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