using System;

 using System.Data;

 using System.Drawing;

 using System.Text;

 using System.Windows.Forms;

 namespace Test11

 {

     public partial class Form1 : Form

     {

         public Form1()

         {

             InitializeComponent();

         }

         private void Form1_Load(object sender, EventArgs e)

         {

             richTextBox1.Multiline = true;

             richTextBox1.ScrollBars = RichTextBoxScrollBars.Vertical;

             richTextBox1.Text = "欢迎登录 http://www.baidu.com编程体验网";

         }

         private void richTextBox1_LinkClicked(object sender, LinkClickedEventArgs e) //标识符已定义好

         {

             System.Diagnostics.Process.Start(e.LinkText);    //识别出超链接，点击后可以访问

         }

         private void richTextBox1_TextChanged(object sender, EventArgs e)

         {

         }

     }

 }