C#简易的下载器

neicun

[C#] 纯文本查看 复制代码

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.Net;
using System.IO;

namespace 下载器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }



        private void button1_Click(object sender, EventArgs e)
        {
            string url = "http://dldir1.qq.com/qqfile/qq/QQ2013/2013Beta5/6966/QQ2013Beta5.exe";//下载地址,这里以QQ为例了
           
           
                WebClient Http = new WebClient();
                Http.Proxy = null;
                Http.DownloadFileCompleted += new AsyncCompletedEventHandler(Http_DownloadFileCompleted);
                Http.DownloadProgressChanged += new DownloadProgressChangedEventHandler(Http_DownloadProgressChanged);    
                Http.DownloadFileAsync(new Uri(url), Application.StartupPath +"\\" +Path.GetFileName(url));

        }

        void Http_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {
            progressBar1.Value = e.ProgressPercentage;
        }

        void Http_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
        {
            MessageBox.Show("下载完成");
        }

    }
}

界面自己设计一个按钮  一个进度条就OK了  

xiao589

想学习C#