C# 单线程（不带参数）演示程序

源代码：

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

namespace WindowsFormsApplication13
{
    public partial class Form1 : Form
    {
       
        p rivate String html1 = null;
        public String Html1
        {
            get { return this.html1; }
            set { this.html1 = value; }
        }

        public Form1()
        {
            InitializeComponent();
        }

        p rivate void button1_Click(object sender, EventArgs e)
        {
            Thread myThread1;
            myThread1 = new Thread(new ThreadStart(readwebsite));
            myThread1.Start();
        }

        p rivate void readwebsite()
        {
            this.Html1 = gethtml(textBox1.Text.Trim());
            MethodInvoker mi = new MethodInvoker(richtextbox_invokefun);
            this.BeginInvoke(mi);
        }

        p rivate String gethtml(String url)
        {
            WebClient web1 = new WebClient();
            byte[] data1= web1.DownloadData(url);
            String html=Encoding.Default.GetString(data1);
            return html;
        }

        p rivate void richtextbox_invokefun()
        {
            richTextBox1.Text =this.Html1;
        }
    }
}

源代码下载