一段C#提取网页中某个文件内容的范例,还是很适用很方便的,立帖为证,方便后期再次适用,

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Windows.Forms;

namespace test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        string SourceCode;
        private void Form1_Load(object sender, EventArgs e)
        {

            string url = "http://xxxx.com/link.txt";
            getWebresourceFile5(url);

            MessageBox.Show(SourceCode);

        }

        public string getWebresourceFile5(string url)
        {
            WebRequest request = WebRequest.Create(url);
            WebResponse response = request.GetResponse();
            Stream resStream = response.GetResponseStream();
            StreamReader sr = new StreamReader(resStream, System.Text.Encoding.Default);
            SourceCode = sr.ReadToEnd();
            resStream.Close();
            sr.Close();
            return SourceCode;
        }

        private void saveSourceCode(string sourceCode)
        {
            throw new NotImplementedException();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show(SourceCode);
        }
    }
}