显示网页HTML源代码

1）引入命名空间
using System.Net;
using System.IO;
2)添加一个button，一个textbox,一个listbox
private void button1_Click(object sender, EventArgs e)
2{
3 string netUrl = "http://"+textBox1.Text;
4 string line;
5 WebClient client = new WebClient();
6 Stream strm = client.OpenRead(netUrl);
7 StreamReader sr = new StreamReader(strm);
8
9 while((line=sr.ReadLine())!=null)
{
listBox1.Items.Add(line);
}
strm.Close();
}