1、利用浏览器打开
using System.Diagnostics;
Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName = "http://www.baidu.com";
proc.Start();
2、在应用程序中打开
WebBrowser wb = new WebBrowser();
wb.Source = new Uri("http://www.baidu.com");
UserControl u = new UserControl();
u.Content = wb;
将u 显示出来