this.AcceptButton = button1的用法：

 using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Data;

 using System.Drawing;

 using System.Text;

 using System.Windows.Forms;

 namespace Test02

 {

     public partial class Form1 : Form

     {

         public Form1()

         {

             InitializeComponent();

         }

         private void Form1_Load(object sender, EventArgs e)

         {

             this.AcceptButton = button1;

         }

         private void button1_Click(object sender, EventArgs e)

         {

             MessageBox.Show("引发了接受按钮1");

         }

     }

 }