crl-

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.IO;
using System.Threading;

namespace webClient
{
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Label label1;
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Windows 窗体设计器支持所必需的
            //
            InitializeComponent();

            //
            // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
            //
        }

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        #region Windows 窗体设计器生成的代码
        /// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(248, 112);
            this.button1.Name = "button1";
            this.button1.TabIndex = 0;
            this.button1.Text = "DownLoad";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // textBox1
            //
            this.textBox1.Location = new System.Drawing.Point(88, 16);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(192, 21);
            this.textBox1.TabIndex = 1;
            this.textBox1.Text = "";
            //
            // label1
            //
            this.label1.Location = new System.Drawing.Point(8, 16);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(64, 23);
            this.label1.TabIndex = 2;
            this.label1.Text = "URL:";
            this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            //
            // Form1
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(400, 150);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }

        private void button1_Click(object sender, System.EventArgs e)
        {
Thread th=new Thread(new ThreadStart(download));
            th.Start();
        }

        private void download()
        {
            string url=textBox1.Text;
            int n=url.LastIndexOf("/");
            string filename=url.Substring(n+1,url.Length-n-1);
            WebRequest wr=WebRequest.Create(url);
            WebResponse ws=wr.GetResponse();
            Stream wp=wr.GetResponse().GetResponseStream();
            byte[] mbyte=new byte[10000];
            int allmybyte = (int)mbyte.Length;
            int startmbyte = 0;
            while(allmybyte>0)
            {
                int j=wp.Read(mbyte,startmbyte,allmybyte);
                if(j==0)
                {
                    wp.Close();
                    break;
                }
                startmbyte+=j;
                allmybyte-=j;
            }
            FileStream fs=new FileStream("c:/"+filename,FileMode.OpenOrCreate,FileAccess.Write);
            fs.Write(mbyte,0,startmbyte);
            fs.Close();

            MessageBox.Show("file download finesh");

        }
    }
}