不清楚System.Diagnostics.Process.Start(e.LinkText); 的含义

 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)
         {

         }
     }
 }