diff --git a/installer/Installer/MainWindow.xaml b/installer/Installer/MainWindow.xaml
index 48625cc..c298ff1 100644
--- a/installer/Installer/MainWindow.xaml
+++ b/installer/Installer/MainWindow.xaml
@@ -38,17 +38,19 @@
 
         <TextBox Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="5" Name="RouteTxtBox" Text="{Binding Route}" Visibility="{Binding RouteBoxVis}"/>
         <Button Grid.Row="3" Grid.Column="6" Name="GetRouteBtn" Content="选择文件夹" Command="{Binding ClickBrowseCommand}" Visibility="{Binding RouteBoxVis}" />
-        <Button Grid.Row="3" Grid.Column="7" Name="SetBtm" Content="确认并安装" Command="{Binding ClickConfirmCommand}" Visibility="{Binding RouteBoxVis}"/>
+        <Button Grid.Row="3" Grid.Column="7" Name="SetBtm" Content="{Binding ConfirmBtnCont}" Command="{Binding ClickConfirmCommand}" Visibility="{Binding RouteBoxVis}"/>
+        <Button Grid.Row="4" Grid.Column="6" Grid.ColumnSpan="2" Name="ReadExsisted" Content="从所选文件夹直接读取" Command="{Binding ClickReadCommand}" Visibility="{Binding NewUserVis}"/>
+        
         <Button Grid.Row="3" Grid.Column="2" Grid.ColumnSpan="2" Name="UpdateBtn" Content="{Binding UpdateBtnCont}" Command="{Binding ClickUpdateCommand}" Visibility="{Binding MenuVis}" />
-        <TextBlock Grid.Row="4" Grid.Column="2" Text="{Binding UpdateInfo}" Visibility="{Binding MenuVis}" />
+        <TextBlock Grid.Row="4" Grid.Column="2" Grid.ColumnSpan="2" FontSize="10" Text="{Binding UpdateInfo}" Visibility="{Binding UpdateInfoVis}" />
 
         <Button Grid.Row="5" Grid.Column="2" Grid.ColumnSpan="2" Name="MoveBtn" Content="移动文件" Command="{Binding ClickMoveCommand}" Visibility="{Binding MenuVis}" />
 
         <Button Grid.Row="6" Grid.Column="2" Grid.ColumnSpan="2" Name="UninstBtn" Content="卸载选手包" Command="{Binding ClickUninstCommand}" Visibility="{Binding MenuVis}" />
         <Button Grid.Row="7" Grid.Column="2" Grid.ColumnSpan="2" Name="MenuBackBtn" Content="回到登陆界面" Command="{Binding ClickBackCommand}" Visibility="{Binding MenuVis}" />
 
-        <TextBlock Grid.Row="3" Grid.Column="4" Text="Processing" Grid.ColumnSpan="2" Visibility="{Binding ProgressVis}"/>
-        <ProgressBar Grid.Row="5" Grid.Column="2" Grid.ColumnSpan="6" Minimum="0" Maximum="100" Name="Progress" Visibility="{Binding ProgressVis}" IsIndeterminate="True"/>
+        <TextBlock Grid.Row="3" Grid.Column="3" Text="正在下载……" Grid.ColumnSpan="2" Visibility="{Binding ProgressVis}"/>
+        <ProgressBar Grid.Row="5" Grid.Column="1" Grid.ColumnSpan="7" Minimum="0" Maximum="100" Name="Progress" Visibility="{Binding ProgressVis}" IsIndeterminate="True"/>
 
         <TextBlock Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="4" Text="操作完成！你可以继续操作或退出" Visibility="{Binding CompleteVis}"/>
         <Button Grid.Row="6" Grid.Column="1" Name="BackBtn" Content="返回" Command="{Binding ClickBackCommand}" Visibility="{Binding CompleteVis}" Click="BackBtn_Click"/>
@@ -72,13 +74,14 @@
                 <TextBlock Grid.Row="3" Grid.Column="0" Text="密码：" Visibility="{Binding LoginVis}" />
                 <TextBox Grid.Row="1" Grid.Column="1" Name="Username" Visibility="{Binding LoginVis}" Text="{Binding Username}" />
                 <PasswordBox Grid.Row="3" Grid.Column="1" Name="Password" Visibility="{Binding LoginVis}" c:PasswordHelper.Attach="True" c:PasswordHelper.Password="{Binding Password, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
-                <!--<CheckBox Grid.Row="5" Grid.Column="0" Visibility="{Binding LoginVis}">记住我</CheckBox>-->
+                <CheckBox Grid.Row="5" Grid.Column="0" Visibility="{Binding LoginVis}" IsChecked="{Binding RememberMe}">记住我</CheckBox>
                 <TextBlock Grid.Row="5" Grid.Column="1" Foreground="Red" Text="    用户名或密码错误！" Visibility="{Binding LoginFailVis}"/>
             </Grid>
         </StackPanel>
         
         <Button Grid.Row="7" Grid.Column="1"  Name="Login" Content="登录" Command="{Binding ClickLoginCommand}" Visibility="{Binding LoginVis}"/>
-        <Button Grid.Row="7" Grid.Column="2"  Name="Launch" Content="{Binding LaunchBtnCont}" Command="{Binding ClickLaunchCommand}" Visibility="{Binding LoginVis}"/>
+        <Button Grid.Row="7" Grid.Column="2"  Name="Launch" FontSize="11" Content="{Binding LaunchBtnCont}" Command="{Binding ClickLaunchCommand}" Visibility="{Binding LoginVis}"/>
+        <Button Grid.Row="7" Grid.Column="3" Name="ShiftLanguage" FontSize="11" Content="更改语言" Command="{Binding ClickShiftLanguageCommand}" Visibility="{Binding LaunchVis}"/>
         <Button Grid.Row="7" Grid.Column="4" Grid.ColumnSpan="2" Name="Edit" Content="修改文件" Command="{Binding ClickEditCommand}" Visibility="{Binding LoginVis}"/>
 
 
diff --git a/installer/Installer/Model.cs b/installer/Installer/Model.cs
index 36cccdc..35ab9e0 100644
--- a/installer/Installer/Model.cs
+++ b/installer/Installer/Model.cs
@@ -21,10 +21,13 @@ using System.Net.Http;
 using System.Windows;
 using System.Windows.Shapes;
 //using System.Windows.Forms;
+using System.Threading.Tasks;
+using System.Threading;
 
 using MessageBox = System.Windows.MessageBox;
 using Downloader;
 using COSXML.Transfer;
+using WebConnect;
 using System.IO.Compression;
 using ICSharpCode.SharpZipLib.Tar;
 using ICSharpCode.SharpZipLib.GZip;
@@ -55,6 +58,7 @@ namespace starter.viewmodel.settings
             PlayerNum = "nSelect";
             UploadReady = false;
             LoginFailed = false;
+            launchLanguage = LaunchLanguage.cpp;
         }
 
         /// <summary>
@@ -121,7 +125,7 @@ namespace starter.viewmodel.settings
             {
                 if (updateInfo.changedFileCount != 0 || updateInfo.newFileCount != 0)
                 {
-                    Updates = "发现新版本";
+                    Updates = $"{updateInfo.newFileCount}个新文件，{updateInfo.changedFileCount}个文件变化";
                 }
                 return Status.menu;
             }
@@ -131,6 +135,38 @@ namespace starter.viewmodel.settings
         {
             return await web.LoginToEEsast(client, Username, Password);
         }
+
+        public bool RememberUser()
+        {
+            int result = 0;
+            result |= Web.WriteUserEmail(Username);
+            result |= Web.WriteUserPassword(Password);
+            return result == 0;
+        }
+        public bool RecallUser()
+        {
+            Username = Web.ReadUserEmail();
+            if (Username == null || Username.Equals(""))
+            {
+                Username = "";
+                return false;
+            }
+            Password = Web.ReadUserPassword();
+            if (Password == null || Username.Equals(""))
+            {
+                Password = "";
+                return false;
+            }
+            return true;
+        }
+        public bool ForgetUser()
+        {
+            int result = 0;
+            result |= Web.WriteUserEmail("");
+            result |= Web.WriteUserPassword("");
+            return result == 0;
+        }
+
         public bool Update()
         {
             return Tencent_cos_download.Update();
@@ -257,6 +293,15 @@ namespace starter.viewmodel.settings
         {
             get; set;
         }
+        public bool RememberMe
+        {
+            get; set;
+        }
+        public enum LaunchLanguage { cpp, python };
+        public LaunchLanguage launchLanguage
+        {
+            get; set;
+        }
     }
 }
 namespace Downloader
@@ -422,7 +467,7 @@ namespace Downloader
                     Dictionary<string, string> test = request.GetRequestHeaders();
                     request.SetCosProgressCallback(delegate (long completed, long total)
                     {
-                        Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
+                        //Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
                     });
                     // 执行请求
                     GetObjectResult result = cosXml.GetObject(request);
@@ -466,6 +511,8 @@ namespace Downloader
                 {
                     if (fst != null)
                         fst.Close();
+                    if (File.Exists(strFileFullPath))
+                        return "conflict";
                     return "";
                 }
                 finally
@@ -524,6 +571,8 @@ namespace Downloader
                         MD5 = GetFileMd5Hash(System.IO.Path.Combine(Data.FilePath, pair.Key));
                         if (MD5.Length == 0)  // 文档不存在
                             newFileName.Add(pair.Key);
+                        else if (MD5.Equals("conflict"))
+                            MessageBox.Show($"文件{pair.Key}已打开，无法检查是否为最新，若需要，请关闭文件稍后手动检查更新", "文件正在使用", MessageBoxButton.OK, MessageBoxImage.Warning);
                         else if (MD5 != pair.Value)  // MD5不匹配
                             updateFileName.Add(pair.Key);
                     }
@@ -584,7 +633,6 @@ namespace Downloader
             private static void Download()
             {
                 Tencent_cos_download Downloader = new Tencent_cos_download();
-
                 int newFile = 0, updateFile = 0;
                 int totalnew = newFileName.Count, totalupdate = updateFileName.Count;
                 filenum = totalnew + totalupdate;
@@ -595,17 +643,17 @@ namespace Downloader
                     {
                         foreach (string filename in newFileName)
                         {
-                            Console.WriteLine(newFile + 1 + "/" + totalnew + ":开始下载" + filename);
+                            //Console.WriteLine(newFile + 1 + "/" + totalnew + ":开始下载" + filename);
                             Downloader.download(System.IO.Path.Combine(@Data.FilePath, filename), filename);
-                            Console.WriteLine(filename + "下载完毕!" + Environment.NewLine);
+                            //Console.WriteLine(filename + "下载完毕!" + Environment.NewLine);
                             newFile++;
                         }
                         foreach (string filename in updateFileName)
                         {
-                            Console.WriteLine(updateFile + 1 + "/" + totalupdate + ":开始下载" + filename);
+                            //Console.WriteLine(updateFile + 1 + "/" + totalupdate + ":开始下载" + filename);
                             File.Delete(System.IO.Path.Combine(@Data.FilePath, filename));
                             Downloader.download(System.IO.Path.Combine(@Data.FilePath, filename), filename);
-                            Console.WriteLine(filename + "下载完毕!" + Environment.NewLine);
+                            //Console.WriteLine(filename + "下载完毕!" + Environment.NewLine);
                             updateFile++;
                         }
                     }
@@ -771,7 +819,7 @@ namespace Downloader
                 foreach (FileInfo NextFile in theFolder.GetFiles())
                 {
                     string filepath = topDir + @"/" + NextFile.Name;  // 文件路径
-                    Console.WriteLine(filepath);
+                    //Console.WriteLine(filepath);
                     foreach (KeyValuePair<string, string> pair in jsonDict)
                     {
                         if (System.IO.Path.Equals(filepath, System.IO.Path.Combine(Data.FilePath, pair.Key).Replace('\\', '/')))
@@ -921,7 +969,6 @@ namespace Downloader
                     Console.WriteLine("文件已经打开，请关闭后再删除");
                     return -1;
                 }
-                Console.WriteLine($"删除成功！player文件夹中的文件已经放在{ProgramName}的根目录下");
                 return 0;
             }
 
@@ -1101,7 +1148,7 @@ namespace WebConnect
                     switch (response.StatusCode)
                     {
                         case System.Net.HttpStatusCode.OK:
-                            Console.WriteLine("Success login");
+                            //Console.WriteLine("Success login");
                             token = (System.Text.Json.JsonSerializer.Deserialize(await response.Content.ReadAsStreamAsync(), typeof(LoginResponse), new JsonSerializerOptions()
                             {
                                 PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
@@ -1117,7 +1164,7 @@ namespace WebConnect
 
                         default:
                             int code = ((int)response.StatusCode);
-                            Console.WriteLine(code);
+                            //Console.WriteLine(code);
                             if (code == 401)
                             {
                                 //Console.WriteLine("邮箱或密码错误！");
@@ -1201,13 +1248,13 @@ namespace WebConnect
 
                             uploadTask.progressCallback = delegate (long completed, long total)
                             {
-                                Console.WriteLine(string.Format("progress = {0:##.##}%", completed * 100.0 / total));
+                                //Console.WriteLine(string.Format("progress = {0:##.##}%", completed * 100.0 / total));
                             };
 
                             try
                             {
                                 COSXMLUploadTask.UploadTaskResult result = await transferManager.UploadAsync(uploadTask);
-                                Console.WriteLine(result.GetResultInfo());
+                                //Console.WriteLine(result.GetResultInfo());
                                 string eTag = result.eTag;
                                 //到这里应该是成功了，但是因为我没有试过，也不知道具体情况，可能还要根据result的内容判断
                             }
diff --git a/installer/Installer/ViewModel.cs b/installer/Installer/ViewModel.cs
index 3aabff0..115286c 100644
--- a/installer/Installer/ViewModel.cs
+++ b/installer/Installer/ViewModel.cs
@@ -7,11 +7,19 @@ using Downloader;
 using MessageBox = System.Windows.MessageBox;
 using System.Configuration;
 using System.Drawing.Design;
+using Application = System.Windows.Application;
+using System.ComponentModel;
+using Installer;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement;
+using System.IO;
 
 namespace starter.viewmodel.settings
 {
     public class SettingsViewModel : NotificationObject
     {
+        //定义BackgroundWorker
+        BackgroundWorker asyncDownloader;
+        BackgroundWorker asyncUpdater;
         /// <summary>
         /// Model object
         /// </summary>
@@ -22,17 +30,40 @@ namespace starter.viewmodel.settings
 
         public SettingsViewModel()
         {
+
             //Program.Tencent_cos_download.UpdateHash();
-            //WebConnect.Web.WriteUserEmail("wangsk21@mails.tsinghua.edu.cn");
+
+            //实例化BackgroundWorker
+            asyncDownloader = new BackgroundWorker();
+            asyncUpdater = new BackgroundWorker();
+            //指示BackgroundWorker是否可以报告进度更新
+            //当该属性值为True是，将可以成功调用ReportProgress方法，否则将引发InvalidOperationException异常。
+            asyncDownloader.WorkerReportsProgress = true;
+            asyncUpdater.WorkerReportsProgress = true;
+            //挂载方法：
+            asyncDownloader.DoWork += AsyncDownloader_DoWork;
+            asyncUpdater.DoWork += AsyncUpdater_DoWork;
+            //完成通知器：
+            asyncDownloader.RunWorkerCompleted += AsyncDownloader_RunWorkerCompleted;
+            asyncUpdater.RunWorkerCompleted += AsyncUpdater_RunWorkerCompleted;
+
+            UpdateInfoVis = Visibility.Collapsed;
+
             if (Downloader.Program.Tencent_cos_download.CheckAlreadyDownload())
             {
                 obj.checkUpdate();
                 Status = SettingsModel.Status.login;
                 this.RaisePropertyChanged("WindowWidth");
-                //TODO:在启动时立刻检查更新，确保选手启动最新版选手包
-                //TODO:若有更新，将启动键改为更新键；
-                //TODO:相应地，使用login界面启动；
-                //TODO:结构：上方为登录框架，下方有“修改选手包”按钮
+                this.RaisePropertyChanged("LaunchVis");
+                if (obj.RecallUser())
+                    RememberMe = true;
+                else
+                    RememberMe = false;
+                this.RaisePropertyChanged("RememberMe");
+                //在启动时立刻检查更新，确保选手启动最新版选手包
+                //若有更新，将启动键改为更新键；
+                //相应地，使用login界面启动；
+                //结构：上方为登录框架，下方有“修改选手包”按钮
             }
             else
             {
@@ -42,6 +73,85 @@ namespace starter.viewmodel.settings
             }
         }
 
+        private void AsyncDownloader_RunWorkerCompleted(object? sender, RunWorkerCompletedEventArgs e)
+        {
+            if (e.Result == null)
+            {
+                Status = SettingsModel.Status.error;
+            }
+            else if ((bool)e.Result)
+            {
+                Status = SettingsModel.Status.successful;
+            }
+            else
+            {
+                Status = SettingsModel.Status.newUser;
+            }
+        }
+
+        private void AsyncUpdater_RunWorkerCompleted(object? sender, RunWorkerCompletedEventArgs e)
+        {
+            if (e.Result == null)
+            {
+                Status = SettingsModel.Status.error;
+            }
+            else
+            {
+                this.RaisePropertyChanged("LaunchVis");
+                if ((int)e.Result == 1)
+                {
+                    Status = SettingsModel.Status.successful;
+                    this.RaisePropertyChanged("UpdateBtnCont");
+                    this.RaisePropertyChanged("UpdateInfo");
+                    this.RaisePropertyChanged("LaunchBtnCont");
+                }
+                else if ((int)e.Result == 2)
+                {
+                    Status = SettingsModel.Status.login;
+                    this.RaisePropertyChanged("UpdateBtnCont");
+                    this.RaisePropertyChanged("LaunchBtnCont");
+                    this.RaisePropertyChanged("UpdateInfo");
+                }
+            }
+        }
+
+        private void AsyncUpdater_DoWork(object? sender, DoWorkEventArgs e)
+        {
+            if (asyncUpdater.CancellationPending)
+            {
+                e.Cancel = true;
+                return;
+            }
+            else
+            {
+                if (obj.Update())
+                    if (e.Argument.ToString().Equals("Manual"))
+                    {
+                        e.Result = 1;
+                    }
+                    else
+                        e.Result = 2;
+                else
+                    e.Result = -1;
+            }
+        }
+
+        private void AsyncDownloader_DoWork(object? sender, DoWorkEventArgs e)
+        {
+            if (asyncDownloader.CancellationPending)
+            {
+                e.Cancel = true;
+                return;
+            }
+            else
+            {
+                if (obj.install())
+                    e.Result = true;
+                else
+                    e.Result = false;
+            }
+        }
+
         //TODO:参赛界面：包括上传参赛代码、申请对战
         //TODO:界面中应包含上次对战完成提示及下载回放按钮
 
@@ -95,6 +205,10 @@ namespace starter.viewmodel.settings
                 this.RaisePropertyChanged("CompleteVis");
                 this.RaisePropertyChanged("WindowWidth");
                 this.RaisePropertyChanged("WebVis");
+                this.RaisePropertyChanged("CoverVis");
+                this.RaisePropertyChanged("LaunchVis");
+                this.RaisePropertyChanged("NewUserVis");
+                this.RaisePropertyChanged("ConfirmBtnCont");
             }
         }
         public string Intro
@@ -128,9 +242,9 @@ namespace starter.viewmodel.settings
                 {
 
                     case SettingsModel.Status.newUser:
-                        return "将主体程序安装在：";
+                        return "将选手包安装在（将创建THUAI6文件夹）：";
                     case SettingsModel.Status.move:
-                        return "将主体程序移动到：";
+                        return "将选手包移动到（THUAI6文件夹将会被整体移动）：";
                     default:
                         return "";
                 }
@@ -179,7 +293,10 @@ namespace starter.viewmodel.settings
 
         public string Route
         {
-            get => obj.Route;
+            get
+            {
+                return obj.Route;
+            }
             set
             {
                 obj.Route = value;
@@ -211,6 +328,27 @@ namespace starter.viewmodel.settings
                 return obj.CodeRoute.Substring(obj.CodeRoute.LastIndexOf('/') == -1 ? obj.CodeRoute.LastIndexOf('\\') + 1 : obj.CodeRoute.LastIndexOf('/') + 1);
             }
         }
+
+        public bool RememberMe
+        {
+            get
+            {
+                return obj.RememberMe;
+            }
+            set
+            {
+                obj.RememberMe = value;
+                this.RaisePropertyChanged("RememberMe");
+            }
+        }
+
+        public Visibility NewUserVis
+        {
+            get
+            {
+                return Status == SettingsModel.Status.newUser ? Visibility.Visible : Visibility.Collapsed;
+            }
+        }
         public Visibility MenuVis
         {
             get
@@ -279,6 +417,19 @@ namespace starter.viewmodel.settings
             get { return obj.UploadReady ? Visibility.Visible : Visibility.Collapsed; }
         }
 
+        public Visibility UpdateInfoVis
+        {
+            get; set;
+        }
+
+        public Visibility LaunchVis
+        {
+            get
+            {
+                return obj.status == SettingsModel.Status.login && (!obj.UpdatePlanned) ? Visibility.Visible : Visibility.Collapsed;
+            }
+        }
+
         public string UpdateBtnCont
         {
             get
@@ -293,14 +444,21 @@ namespace starter.viewmodel.settings
                 if (obj.UpdatePlanned)
                     return obj.Updates;
                 else
-                    return "";
+                    return "已是最新版本";
             }
         }
         public string LaunchBtnCont
         {
             get
             {
-                return obj.UpdatePlanned ? "更新" : "启动";
+                string ans;
+                if (obj.UpdatePlanned)
+                    ans = "更新";
+                else if (obj.launchLanguage == SettingsModel.LaunchLanguage.cpp)
+                    ans = "启动c++包";
+                else
+                    ans = "启动python包";
+                return ans;
             }
         }
         public string UploadBtnCont
@@ -310,6 +468,28 @@ namespace starter.viewmodel.settings
                 return obj.UploadReady ? "上传代码" : "选择代码上传";
             }
         }
+        public string ShiftLanguageBtnCont
+        {
+            get
+            {
+                return obj.launchLanguage == SettingsModel.LaunchLanguage.cpp ? "改为python" : "改为c++";
+            }
+        }
+        public string ConfirmBtnCont
+        {
+            get
+            {
+                switch (Status)
+                {
+                    case SettingsModel.Status.newUser:
+                        return "确认并安装";
+                    case SettingsModel.Status.move:
+                        return "确认并移动";
+                    default:
+                        return "";
+                }
+            }
+        }
 
         public string RouteSelectWindow(string type)
         {
@@ -365,16 +545,22 @@ namespace starter.viewmodel.settings
                         {
                             Status = SettingsModel.Status.working;
                             this.RaisePropertyChanged("ProgressVis");
-                            if (obj.install())
+                            /*if (obj.install())
                             {
                                 Status = SettingsModel.Status.successful;
+                            }*/
+                            if (asyncDownloader.IsBusy)
+                                return;
+                            else
+                            {
+                                asyncDownloader.RunWorkerAsync();
                             }
 
                         }
                         else if (Status == SettingsModel.Status.move)
                         {
-                            Status = SettingsModel.Status.working;
-                            this.RaisePropertyChanged("ProgressVis");
+                            //Status = SettingsModel.Status.working;
+                            //this.RaisePropertyChanged("ProgressVis");
                             switch (obj.move())
                             {
                                 case -1:
@@ -400,11 +586,14 @@ namespace starter.viewmodel.settings
                 {
                     clickUpdateCommand = new BaseCommand(new Action<object>(o =>
                     {
+                        this.RaisePropertyChanged("UpdateInfoVis");
                         if (obj.UpdatePlanned)
                         {
+                            UpdateInfoVis = Visibility.Collapsed;
+                            this.RaisePropertyChanged("UpdateInfoVis");
                             Status = SettingsModel.Status.working;
                             this.RaisePropertyChanged("ProgressVis");
-                            if (obj.Update())
+                            /*if (obj.Update())
                             {
 
                                 Status = SettingsModel.Status.successful;
@@ -413,15 +602,22 @@ namespace starter.viewmodel.settings
 
                             }
                             else
-                                Status = SettingsModel.Status.error;
+                                Status = SettingsModel.Status.error;*/
+                            if (asyncUpdater.IsBusy)
+                                return;
+                            else
+                                asyncUpdater.RunWorkerAsync("Manual");
                         }
                         else
                         {
+                            UpdateInfoVis = Visibility.Visible;
+                            this.RaisePropertyChanged("UpdateInfoVis");
                             Status = SettingsModel.Status.working;
                             this.RaisePropertyChanged("ProgressVis");
                             Status = obj.checkUpdate();
                             this.RaisePropertyChanged("UpdateBtnCont");
                             this.RaisePropertyChanged("UpdateInfo");
+                            this.RaisePropertyChanged("LaunchVis");
                         }
                     }));
                 }
@@ -452,8 +648,8 @@ namespace starter.viewmodel.settings
                 {
                     clickUninstCommand = new BaseCommand(new Action<object>(o =>
                     {
-                        Status = SettingsModel.Status.working;
-                        this.RaisePropertyChanged("ProgressVis");
+                        UpdateInfoVis = Visibility.Collapsed;
+                        this.RaisePropertyChanged("UpdateInfoVis");
                         switch (obj.Uninst())
                         {
                             case -1:
@@ -461,13 +657,15 @@ namespace starter.viewmodel.settings
                                 MessageBox.Show("文件已经打开，请关闭后再删除", "", MessageBoxButton.OK, MessageBoxImage.Warning, MessageBoxResult.OK);
                                 break;
                             case 0:
-                                Status = SettingsModel.Status.successful;
+                                Status = SettingsModel.Status.newUser;
+                                MessageBox.Show($"删除成功！player文件夹中的文件已经放在{Downloader.Program.ProgramName}的根目录下", "", MessageBoxButton.OK, MessageBoxImage.Information, MessageBoxResult.OK);
                                 break;
                             default:
                                 Status = SettingsModel.Status.error;
                                 break;
 
                         }
+
                     }));
                 }
                 return clickUninstCommand;
@@ -491,6 +689,22 @@ namespace starter.viewmodel.settings
                             case 0:
                                 obj.LoginFailed = false;
                                 Status = SettingsModel.Status.web;
+                                if (obj.RememberMe)
+                                {
+                                    obj.RememberUser();
+                                    RememberMe = true;
+                                    this.RaisePropertyChanged("RememberMe");
+                                }
+                                else
+                                {
+                                    obj.ForgetUser();
+                                    RememberMe = false;
+                                    this.RaisePropertyChanged("RememberMe");
+                                    Username = "";
+                                    Password = "";
+                                    this.RaisePropertyChanged("Username");
+                                    this.RaisePropertyChanged("Password");
+                                }
                                 this.RaisePropertyChanged("CoverVis");
                                 break;
                             case -2:
@@ -517,15 +731,10 @@ namespace starter.viewmodel.settings
                         {
                             Status = SettingsModel.Status.working;
                             this.RaisePropertyChanged("ProgressVis");
-                            if (obj.Update())
-                            {
-                                this.RaisePropertyChanged("UpdateBtnCont");
-                                this.RaisePropertyChanged("LaunchBtnCont");
-                                Status = SettingsModel.Status.login;
-                                this.RaisePropertyChanged("UpdateInfo");
-                            }
+                            if (asyncUpdater.IsBusy)
+                                return;
                             else
-                                Status = SettingsModel.Status.error;
+                                asyncUpdater.RunWorkerAsync("Auto");
                         }
                         else if (!obj.Launch())
                         {
@@ -546,6 +755,9 @@ namespace starter.viewmodel.settings
                     clickEditCommand = new BaseCommand(new Action<object>(o =>
                     {
                         Status = SettingsModel.Status.menu;
+                        if (obj.UpdatePlanned)
+                            UpdateInfoVis = Visibility.Visible;
+                        this.RaisePropertyChanged("UpdateInfoVis");
                     }));
                 }
                 return clickEditCommand;
@@ -560,6 +772,8 @@ namespace starter.viewmodel.settings
                 {
                     clickBackCommand = new BaseCommand(new Action<object>(o =>
                     {
+                        UpdateInfoVis = Visibility.Collapsed;
+                        this.RaisePropertyChanged("UpdateInfoVis");
                         if (Downloader.Program.Tencent_cos_download.CheckAlreadyDownload())
                             Status = SettingsModel.Status.login;
                         else
@@ -671,12 +885,51 @@ namespace starter.viewmodel.settings
                 {
                     clickExitCommand = new BaseCommand(new Action<object>(o =>
                     {
-                        System.Windows.Application.Current.Shutdown();
+                        Application.Current.Shutdown();
                     }));
                 }
                 return clickExitCommand;
             }
         }
+        private BaseCommand clickShiftLanguageCommand;
+        public BaseCommand ClickShiftLanguageCommand
+        {
+            get
+            {
+                if (clickShiftLanguageCommand == null)
+                {
+                    clickShiftLanguageCommand = new BaseCommand(new Action<object>(o =>
+                    {
+                        if (obj.launchLanguage == SettingsModel.LaunchLanguage.cpp)
+                            obj.launchLanguage = SettingsModel.LaunchLanguage.python;
+                        else
+                            obj.launchLanguage = SettingsModel.LaunchLanguage.cpp;
+                        this.RaisePropertyChanged("ShiftLanguageBtnCont");
+                        this.RaisePropertyChanged("LaunchBtnCont");
+                    }));
+                }
+                return clickShiftLanguageCommand;
+            }
+        }
+        private BaseCommand clickReadCommand;
+        public BaseCommand ClickReadCommand
+        {
+            get
+            {
+                if (clickReadCommand == null)
+                {
+                    clickReadCommand = new BaseCommand(new Action<object>(o =>
+                    {
+                        if (!Directory.Exists(Route + "/THUAI6"))
+                            Route = Route.Substring(0, Route.Length - 7);
+                        Program.Data.ResetFilepath(Route);
+                        if (Program.Tencent_cos_download.CheckAlreadyDownload())
+                            Status = SettingsModel.Status.login;
+                    }));
+                }
+                return clickReadCommand;
+            }
+        }
     }
 
 }
\ No newline at end of file
diff --git a/logic/Client/Properties/launchSettings.json b/logic/Client/Properties/launchSettings.json
index def0f5e..5cdc367 100644
--- a/logic/Client/Properties/launchSettings.json
+++ b/logic/Client/Properties/launchSettings.json
@@ -5,4 +5,4 @@
       "commandLineArgs": "--port 8888 --characterID 3 --type 1 --occupation 5"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/logic/GameRules.md b/logic/GameRules.md
index ad4373f..57dd446 100644
--- a/logic/GameRules.md
+++ b/logic/GameRules.md
@@ -52,7 +52,11 @@ V4.8
 - **x坐标轴正方向竖直向下，y坐标轴正方向水平向右**；
 - **极坐标以x坐标轴为极轴，角度逆时针为正方向**。
 - 地图由50 * 50个格子构成，每个格子代表1000 * 1000的正方形。每个格子的编号(CellX,CellY)可以计算得到：
-  - $$CellX=\frac{x}{1000},CellY=\frac{y}{1000}$$
+
+$$
+CellX=\frac{x}{1000},CellY=\frac{y}{1000}
+$$
+
 - 格子有对应区域类型：陆地、墙、草地、教室、校门、隐藏校门、门、窗、箱子
 
 ### 人物
diff --git a/使用文档.md b/使用文档.md
index 7ae4dd2..c33e0a0 100644
--- a/使用文档.md
+++ b/使用文档.md
@@ -1,10 +1,16 @@
 # 使用文档
 
-本文档仅供Windows选手参考，Linux选手仿照本文档即可
+本文档仅供Windows选手参考，Linux选手仿照本文档即可。
+
+使用python语言的选手要先运行`win/GeneratePythonProto.cmd`，更详细说明请参考`Tool_tutorial.pdf`。
 
 ## 路径
 
-Windows选手使用脚本位于Win文件夹下，Linux选手使用脚本位于Linux文件夹下
+Windows选手使用脚本位于Win文件夹下，Linux选手使用脚本位于Linux文件夹下。
+
+对于c++选手，在 AI.cpp 里写代码，AI::play 函数是代码的编写入口，启动游戏前要进行编译
+
+对于python选手，在AI.py里写代码，启动游戏前要进行编译
 
 ## 游戏启动方式（For Debug）
 
@@ -94,11 +100,7 @@ Server脚本中参数格式一般如下：
 
 ## Client
 
-### C++接口
-
-选手用Visual Studio打开CAPI.sln，编写AI.cpp，建议用Debug模式生成以方便自己调试，然后可以使用`RunCpp.cmd`启动。
-
-`RunCpp.cmd`的脚本参数格式如下：
+`RunCpp.cmd`或`RunPython.cmd`的脚本参数格式如下：
 
 ```shell
 -I 127.0.0.1 -P 8888 -p 0 -d -o -w