winform自动更新程序扫盲贴

using System;
using System.Collections.Generic;
using using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Update;
using System.Threading;
using using System.Runtime.InteropServices;
namespace autoUpdate
{
    public partial class Form1 : Form
    {
        [DllImport("zipfile.dll")]
        public static extern int MyZip_ExtractFileAll(string zipfile, string pathname);
        public Form1()
        {
            InitializeComponent();

            //清除之前下载来的rar文件
            if (File.Exists(Application.StartupPath + "\\Update_autoUpdate.rar"))
            {
                try
                {
                    File.Delete(Application.StartupPath + "\\Update_autoUpdate.rar");
                }
                catch (Exception)
                {


                }

            }
            if (Directory.Exists(Application.StartupPath + "\\autoupload"))
            {
                try
                {
                    Directory.Delete(Application.StartupPath + "\\autoupload", true);
                }
                catch (Exception)
                {


                }
            }
           
            //检查服务端是否有新版本程序
            checkUpdate();
            timer1.Enabled = true;
        }

        SoftUpdate app = new SoftUpdate(Application.ExecutablePath, "xinDianClient");
        public void checkUpdate()
        {

            app.UpdateFinish += new UpdateState(app_UpdateFinish);
            try
            {
                if (app.IsUpdate)
                {
                    app.Update();
                }
                else
                {
                    MessageBox.Show("未检测到新版本!");
                    Application.Exit();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        void app_UpdateFinish()
        {
            //解压下载后的文件
            string path = app.FinalZipName;
            if (File.Exists(path))
            {
                 //后改的 先解压滤波zip植入ini然后再重新压缩
                string dirEcgPath = Application.StartupPath + "\\" + "autoupload";
                if (!Directory.Exists(dirEcgPath))
                {
                    Directory.CreateDirectory(dirEcgPath);
                }
                //开始解压压缩包
                MyZip_ExtractFileAll(path, dirEcgPath);

                try
                {
                    //复制新文件替换旧文件
                    DirectoryInfo TheFolder = new DirectoryInfo(dirEcgPath);
                    foreach (FileInfo NextFile in TheFolder.GetFiles())
                    {
                        File.Copy(NextFile.FullName, Application.StartupPath + "\\program\\" + NextFile.Name, true);
                    }
                    Directory.Delete(dirEcgPath,true);
                    File.Delete(path);
                    //覆盖完成 重新启动程序
                    path = Application.StartupPath + "\\program";
                    System.Diagnostics.Process process = new System.Diagnostics.Process();
                    process.StartInfo.FileName = "xinDianClient.exe";
                    process.StartInfo.WorkingDirectory = path;//要掉用得exe路径例如:"C:\windows";               
                    process.StartInfo.CreateNoWindow = true;
                    process.Start();

                    Application.Exit();
                }
                catch (Exception)
                {
                    MessageBox.Show("请关闭系统在执行更新操作!");
                    Application.Exit();
                }

               
            
               
            }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label2.Text = "下载文件进度:" + () + "%";
            if (100)
            {
                timer1.Enabled = false;
            }
        }


    }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using using using System.Xml;
using COMMON;

namespace Update
{
    /// <summary>  
    /// 更新完成触发的事件  
    /// </summary>  
    public delegate void UpdateState();
    /// <summary>  
    /// 程序更新  
    /// </summary>  
    public class SoftUpdate
    {

        private string download;
        private const string updateUrl = "http://33.8.11.117:8019/update.xml";//升级配置的XML文件地址  

        #region 构造函数
        public SoftUpdate() { }

        /// <summary>  
        /// 程序更新  
        /// </summary>  
        /// <param name="file">要更新的文件</param>  
        public SoftUpdate(string file, string softName)
        {
            this.LoadFile = file;
            this.SoftName = softName;
        }
        #endregion

        #region 属性
        private string loadFile;
        private string newVerson;
        private string softName;
        private bool isUpdate;

        /// <summary>  
        /// 或取是否需要更新  
        /// </summary>  
        public bool IsUpdate
        {
            get
            {
                checkUpdate();
                return isUpdate;
            }
        }

        /// <summary>  
        /// 要检查更新的文件  
        /// </summary>  
        public string LoadFile
        {
            get { return loadFile; }
            set { loadFile = value; }
        }

        /// <summary>  
        /// 程序集新版本  
        /// </summary>  
        public string NewVerson
        {
            get { return newVerson; }
        }

        /// <summary>  
        /// 升级的名称  
        /// </summary>  
        public string SoftName
        {
            get { return softName; }
            set { softName = value; }
        }

        private string _finalZipName = string.Empty;

        public string FinalZipName
        {
            get { return _finalZipName; }
            set { _finalZipName = value; }
        }

        #endregion

        /// <summary>  
        /// 更新完成时触发的事件  
        /// </summary>  
        public event UpdateState UpdateFinish;
        private void isFinish()
        {
            if (UpdateFinish != null)
                UpdateFinish();
        }

        /// <summary>  
        /// 下载更新  
        /// </summary>  
        public void Update()
        {
            try
            {
                if (!isUpdate)
                    return;
                WebClient wc = new WebClient();
                string filename = "";
                string exten = download.Substring(download.LastIndexOf("."));
                if (loadFile.IndexOf(@"\") == -1)
                    filename = "Update_" + Path.GetFileNameWithoutExtension(loadFile) + exten;
                else
                    filename = Path.GetDirectoryName(loadFile) + "\\Update_" + Path.GetFileNameWithoutExtension(loadFile) + exten;

                FinalZipName = filename;
                //wc.DownloadFile(download, filename);
                wc.DownloadFileAsync(new Uri(download), filename);
                wc.DownloadProgressChanged += new DownloadProgressChangedEventHandler(wc_DownloadProgressChanged);
                wc.DownloadFileCompleted += new (wc_DownloadFileCompleted);
                //wc.Dispose();
            
            }
            catch
            {
                throw new Exception("更新出现错误，网络连接失败！");
            }
        }

        void wc_DownloadFileCompleted(object sender, e)
        {
            (sender as WebClient).Dispose();
            isFinish();
        }

        void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {
            CommonMethod.autostep = e.ProgressPercentage;
        }

        /// <summary>  
        /// 检查是否需要更新  
        /// </summary>  
        public void checkUpdate()
        {
            try
            {
                WebClient wc = new WebClient();
                Stream stream = wc.OpenRead(updateUrl);
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(stream);
                XmlNode list = xmlDoc.SelectSingleNode("Update");
                foreach (XmlNode node in list)
                {
                    if (node.Name == "Soft" && node.Attributes["Name"].Value.ToLower() == SoftName.ToLower())
                    {
                        foreach (XmlNode xml in node)
                        {
                            if (xml.Name == "Verson")
                                newVerson = xml.InnerText;
                            else
                                download = xml.InnerText;
                        }
                    }
                }

                Version ver = new Version(newVerson);
                Version verson = Assembly.LoadFrom(loadFile).GetName().Version;
                int tm = (ver);

                if (tm >= 0)
                    isUpdate = false;
                else
                    isUpdate = true;
            }
            catch (Exception ex)
            {
                throw new Exception("更新出现错误，请确认网络连接无误后重试！");
            }
        }

        /// <summary>  
        /// 获取要更新的文件  
        /// </summary>  
        /// <returns></returns>  
        public override string ToString()
        {
            return this.loadFile;
        }
    }
}