多用户系统

Kernel.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Text;
 using System.IO;
@@ -19,7 +19,8 @@ namespace CMLeonOS
 
         protected override void BeforeRun()
         {
-            Console.Clear();
+            // Console.Clear();
+            Console.WriteLine(@"-------------------------------------------------");
             Console.WriteLine(@"   ____ __  __ _                      ___  ____  ");
             Console.WriteLine(@"  / ___|  \/  | |    ___  ___  _ __  / _ \/ ___| ");
             Console.WriteLine(@" | |   | |\/| | |   / _ \/ _ \| '_ \| | | \___ \ ");
@@ -44,54 +45,46 @@ namespace CMLeonOS
                 var fs_type = fs.GetFileSystemType(@"0:\");
                 Console.WriteLine("File System Type: " + fs_type);
                 
-                // 删除默认示例文件和文件夹
+                // 检查并创建system文件夹
-                try
+                string systemFolderPath = @"0:\system";
+                if (!System.IO.Directory.Exists(systemFolderPath))
                 {
-                    // 删除示例文件
+                    System.IO.Directory.CreateDirectory(systemFolderPath);
-                    if (System.IO.File.Exists(@"0:\example.txt"))
+                    Console.WriteLine("Created system folder.");
-                    {
-                        System.IO.File.Delete(@"0:\example.txt");
-                        Console.WriteLine("Deleted example.txt");
-                    }
-                    
-                    // 删除示例文件夹
-                    if (System.IO.Directory.Exists(@"0:\example"))
-                    {
-                        System.IO.Directory.Delete(@"0:\example", true);
-                        Console.WriteLine("Deleted example directory");
-                    }
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine($"Error deleting example files: {ex.Message}");
                 }
                 
                 // 初始化用户系统
                 userSystem = new UserSystem();
                 
-                // 第一次启动，设置管理员密码
+                // 循环直到登录成功或退出
-                if (!userSystem.IsPasswordSet)
+                while (true)
                 {
-                    userSystem.SetAdminPassword();
+                    // 第一次启动，设置管理员账户
-                }
+                    if (!userSystem.HasUsers)
-                // 后续启动，需要登录
-                else
-                {
-                    // 循环直到登录成功
-                    while (!userSystem.Login())
                     {
-                        // 登录失败，继续尝试
+                        userSystem.FirstTimeSetup();
+                    }
+                    // 后续启动，需要登录
+                    else
+                    {
+                        // 循环直到登录成功
+                        while (!userSystem.Login())
+                        {
+                            // 登录失败，继续尝试
+                        }
+                        
+                        // 登录成功后，初始化Shell
+                        shell = new Shell();
+                        
+                        // 检查并执行启动脚本
+                        ExecuteStartupScript();
+                        
+                        // 运行Shell（用户可以输入exit退出）
+                        shell.Run();
+                        
+                        // 如果用户输入了exit，Shell.Run()会返回，继续循环
                     }
                 }
-                
-                // 登录成功后，初始化Shell
-                shell = new Shell();
-                
-                // 检查并执行启动脚本
-                ExecuteStartupScript();
-                
-                // 系统启动完成，蜂鸣器响一声
-                Console.Beep();
             }
             catch (Exception ex)
             {
@@ -101,7 +94,7 @@ namespace CMLeonOS
 
         private void ExecuteStartupScript()
         {
-            string startupFilePath = @"0:\sys\startup.cm";
+            string startupFilePath = @"0:\system\startup.cm";
             
             try
             {

Shell.cs

@@ -21,6 +21,7 @@ namespace CMLeonOS
 
         public void Run()
         {
+            bool shouldExit = false;
             while (true)
             {
                 // 显示当前文件夹路径作为提示符（彩色）
@@ -30,6 +31,15 @@ namespace CMLeonOS
                 Console.Write($"{currentPath} | /");
                 Console.ForegroundColor = originalColor;
                 var input = Console.ReadLine();
+                
+                // 检查是否为退出命令
+                if (input != null && input.ToLower().Trim() == "exit")
+                {
+                    Console.WriteLine("Exiting system...");
+                    shouldExit = true;
+                    break;
+                }
+                
                 commandHistory.Add(input);
                 var parts = input.Split(' ', StringSplitOptions.RemoveEmptyEntries);
                 if (parts.Length > 0)
@@ -38,6 +48,12 @@ namespace CMLeonOS
                     var args = parts.Length > 1 ? string.Join(" ", parts, 1, parts.Length - 1) : "";
                     ProcessCommand(command, args);
                 }
+                
+                // 如果需要退出，返回到登录页面
+                if (shouldExit)
+                {
+                    return;
+                }
             }
         }
 
@@ -94,7 +110,6 @@ namespace CMLeonOS
                     Console.WriteLine("  rmdir <dir>     - Remove directory");
                     Console.WriteLine("  cat <file>     - Display file content");
                     Console.WriteLine("  echo <text> > <file> - Write text to file");
-                    Console.WriteLine("  cpass          - Change password");
                     Console.WriteLine("  head <file>    - Display first lines of file");
                     Console.WriteLine("                  Usage: head <file> <lines>");
                     Console.WriteLine("  tail <file>    - Display last lines of file");
@@ -104,6 +119,14 @@ namespace CMLeonOS
                     Console.WriteLine("  mv <src> <dst> - Move/rename file");
                     Console.WriteLine("  touch <file>    - Create empty file");
                     Console.WriteLine("  find <name>     - Find file");
+                    Console.WriteLine("  getdisk        - Show disk information");
+                    Console.WriteLine("  user <cmd>     - User management");
+                    Console.WriteLine("                  user add admin <username> <password> - Add admin user");
+                    Console.WriteLine("                  user add user <username> <password>      - Add regular user");
+                    Console.WriteLine("                  user delete <username>                    - Delete user");
+                    Console.WriteLine("                  user list                                    - List all users");
+                    Console.WriteLine("  logout         - Logout current user");
+                    Console.WriteLine("  cpass          - Change password");
                     Console.WriteLine("  version        - Show OS version");
                     Console.WriteLine("  about          - Show about information");
                     Console.WriteLine("  help           - Show this help message");
@@ -164,7 +187,7 @@ namespace CMLeonOS
                     else
                     {
                         // 检查是否在sys文件夹中（修复模式下绕过检测）
-                        bool isInSysFolder = (args.Contains(@"\sys\") || args.Contains(@"/sys/")) && !fixMode;
+                        bool isInSysFolder = (args.Contains(@"\system\") || args.Contains(@"/sys/")) && !fixMode;
                         
                         if (isInSysFolder)
                         {
@@ -203,7 +226,7 @@ namespace CMLeonOS
                     else
                     {
                         // 检查是否在sys文件夹中（修复模式下绕过检测）
-                        bool isInSysFolder = (args.Contains(@"\sys\") || args.Contains(@"/sys/")) && !fixMode;
+                        bool isInSysFolder = (args.Contains(@"\system\") || args.Contains(@"/sys/")) && !fixMode;
                         
                         if (isInSysFolder)
                         {
@@ -233,9 +256,6 @@ namespace CMLeonOS
                     Console.WriteLine("CMLeonOS Test Project");
                     Console.WriteLine("By LeonOS 2 Developement Team");
                     break;
-                case "cpass":
-                    userSystem.ChangePassword();
-                    break;
                 case "head":
                     HeadFile(args);
                     break;
@@ -257,6 +277,18 @@ namespace CMLeonOS
                 case "find":
                     FindFile(args);
                     break;
+                case "getdisk":
+                    GetDiskInfo();
+                    break;
+                case "user":
+                    ProcessUserCommand(args);
+                    break;
+                case "logout":
+                    userSystem.Logout();
+                    break;
+                case "cpass":
+                    userSystem.ChangePassword();
+                    break;
                 default:
                     Console.WriteLine($"Unknown command: {command}");
                     break;
@@ -805,5 +837,108 @@ namespace CMLeonOS
                 Console.WriteLine($"Error finding file: {ex.Message}");
             }
         }
+
+        private void GetDiskInfo()
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine("        Disk Information");
+            Console.WriteLine("====================================");
+            
+            try
+            {
+                // 使用VFSManager获取所有磁盘
+                var disks = Sys.FileSystem.VFS.VFSManager.GetDisks();
+                
+                if (disks == null || disks.Count == 0)
+                {
+                    Console.WriteLine("No disks found.");
+                    return;
+                }
+                
+                Console.WriteLine($"Total Disks: {disks.Count}");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error getting disk info: {ex.Message}");
+            }
+        }
+
+        private string FormatBytes(long bytes)
+        {
+            string[] units = { "B", "KB", "MB", "GB", "TB" };
+            int unitIndex = 0;
+            double size = bytes;
+            
+            while (size >= 1024 && unitIndex < units.Length - 1)
+            {
+                size /= 1024;
+                unitIndex++;
+            }
+            
+            return $"{size:F2} {units[unitIndex]}";
+        }
+
+        private void ProcessUserCommand(string args)
+        {
+            if (string.IsNullOrEmpty(args))
+            {
+                Console.WriteLine("Error: Please specify a user command");
+                Console.WriteLine("Usage: user <add|delete> [args]");
+                Console.WriteLine("  user add admin <username> <password>  - Add admin user");
+                Console.WriteLine("  user add user <username> <password>      - Add regular user");
+                Console.WriteLine("  user delete <username>                    - Delete user");
+                Console.WriteLine("  user list                                    - List all users");
+                return;
+            }
+            
+            string[] parts = args.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+            if (parts.Length < 1)
+            {
+                Console.WriteLine("Error: Please specify a user command");
+                Console.WriteLine("Usage: user <add|delete> [args]");
+                return;
+            }
+            
+            string subCommand = parts[0].ToLower();
+            
+            if (subCommand == "add")
+            {
+                if (parts.Length < 4)
+                {
+                    Console.WriteLine("Error: Please specify user type and username and password");
+                    Console.WriteLine("Usage: user add admin <username> <password>");
+                    Console.WriteLine("Usage: user add user <username> <password>");
+                    return;
+                }
+                
+                string userType = parts[1].ToLower();
+                string username = parts[2];
+                string password = parts[3];
+                bool isAdmin = userType == "admin";
+                
+                userSystem.AddUser($"{username} {password}", isAdmin);
+            }
+            else if (subCommand == "delete")
+            {
+                if (parts.Length < 2)
+                {
+                    Console.WriteLine("Error: Please specify username");
+                    Console.WriteLine("Usage: user delete <username>");
+                    return;
+                }
+                
+                string username = parts[1];
+                userSystem.DeleteUser(username);
+            }
+            else if (subCommand == "list")
+            {
+                userSystem.ListUsers();
+            }
+            else
+            {
+                Console.WriteLine($"Error: Unknown user command '{subCommand}'");
+                Console.WriteLine("Available commands: add, delete, list");
+            }
+        }
     }
 }

UserSystem.cs

@@ -1,23 +1,31 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 
 namespace CMLeonOS
 {
+    public class User
+    {
+        public string Username { get; set; }
+        public string Password { get; set; }
+        public bool IsAdmin { get; set; }
+    }
+
     public class UserSystem
     {
-        private string sysDirectory = @"0:\sys";
+        private string sysDirectory = @"0:\system";
-        private string adminPasswordFilePath;
+        private string userFilePath;
-        private bool isPasswordSet = false;
+        private List<User> users;
 
         public UserSystem()
         {
-            // 确保sys目录存在
             EnsureSysDirectoryExists();
             
-            // 设置密码文件路径
+            // 设置用户文件路径
-            adminPasswordFilePath = Path.Combine(sysDirectory, "admin_password.txt");
+            userFilePath = Path.Combine(sysDirectory, "user.dat");
             
-            CheckPasswordStatus();
+            // 加载用户数据
+            LoadUsers();
         }
 
         private void EnsureSysDirectoryExists()
@@ -35,53 +43,172 @@ namespace CMLeonOS
             }
         }
 
-        private void CheckPasswordStatus()
+        private void LoadUsers()
         {
             try
             {
-                isPasswordSet = File.Exists(adminPasswordFilePath);
+                if (File.Exists(userFilePath))
+                {
+                    string[] lines = File.ReadAllLines(userFilePath);
+                    users = new List<User>();
+                    
+                    foreach (string line in lines)
+                    {
+                        if (string.IsNullOrWhiteSpace(line) || line.StartsWith("#"))
+                        {
+                            continue;
+                        }
+                        
+                        string[] parts = line.Split('|');
+                        if (parts.Length >= 2)
+                        {
+                            User user = new User
+                            {
+                                Username = parts[0].Trim(),
+                                Password = parts[1].Trim(),
+                                IsAdmin = parts.Length >= 3 && parts[2].Trim().ToLower() == "admin"
+                            };
+                            users.Add(user);
+                        }
+                    }
+                }
+                else
+                {
+                    users = new List<User>();
+                }
             }
             catch
             {
-                isPasswordSet = false;
+                users = new List<User>();
             }
         }
 
-        public bool IsPasswordSet
+        private void SaveUsers()
         {
-            get { return isPasswordSet; }
+            try
+            {
+                List<string> lines = new List<string>();
+                foreach (User user in users)
+                {
+                    string line = $"{user.Username}|{user.Password}|{(user.IsAdmin ? "admin" : "user")}";
+                    lines.Add(line);
+                }
+                File.WriteAllLines(userFilePath, lines.ToArray());
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error saving users: {ex.Message}");
+            }
         }
 
-        public void SetAdminPassword()
+        public bool HasUsers
+        {
+            get { return users.Count > 0; }
+        }
+
+        public bool IsAdminSet
+        {
+            get
+            {
+                foreach (User user in users)
+                {
+                    if (user.IsAdmin)
+                    {
+                        return true;
+                    }
+                }
+                return false;
+            }
+        }
+
+        public void FirstTimeSetup()
         {
             Console.WriteLine("====================================");
             Console.WriteLine("        First Time Setup");
             Console.WriteLine("====================================");
-            Console.WriteLine("Please set a password for admin user:");
+            Console.WriteLine("Please set admin username and password:");
             
+            Console.Write("Username: ");
+            string username = Console.ReadLine();
+            
+            while (string.IsNullOrWhiteSpace(username))
+            {
+                Console.WriteLine("Username cannot be empty.");
+                Console.Write("Username: ");
+                username = Console.ReadLine();
+            }
+            
+            Console.WriteLine("Password: ");
             string password = ReadPassword();
             
             Console.WriteLine("Please confirm your password:");
             string confirmPassword = ReadPassword();
             
-            if (password == confirmPassword)
+            while (password != confirmPassword)
-            {
-                try
-                {
-                    // 简单存储密码（实际应用中应使用加密）
-                    File.WriteAllText(adminPasswordFilePath, password);
-                    Console.WriteLine("Password set successfully!");
-                    isPasswordSet = true;
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine($"Error setting password: {ex.Message}");
-                }
-            }
-            else
             {
                 Console.WriteLine("Passwords do not match. Please try again.");
-                SetAdminPassword();
+                
+                Console.Write("Username: ");
+                username = Console.ReadLine();
+                
+                while (string.IsNullOrWhiteSpace(username))
+                {
+                    Console.WriteLine("Username cannot be empty.");
+                    Console.Write("Username: ");
+                    username = Console.ReadLine();
+                }
+                
+                Console.WriteLine("Password: ");
+                password = ReadPassword();
+                
+                Console.WriteLine("Please confirm your password:");
+                confirmPassword = ReadPassword();
+            }
+            
+            try
+            {
+                User adminUser = new User
+                {
+                    Username = username,
+                    Password = password,
+                    IsAdmin = true
+                };
+                users.Add(adminUser);
+                SaveUsers();
+                Console.WriteLine("Admin user created successfully!");
+                
+                // 创建用户文件夹
+                CreateUserFolder(username);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error creating admin user: {ex.Message}");
+            }
+        }
+
+        private void CreateUserFolder(string username)
+        {
+            try
+            {
+                Console.WriteLine($"Creating user folder for {username}...");
+
+                // 在user文件夹下创建用户文件夹
+                string userFolderPath = Path.Combine(@"0:\user", username);
+                
+                // 检查用户文件夹是否存在
+                if (!Directory.Exists(userFolderPath))
+                {
+                    Directory.CreateDirectory(userFolderPath);
+                    Console.WriteLine($"Created user folder for {username}.");
+                }
+                else 
+                {
+                    Console.WriteLine($"User folder for {username} already exists.");
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error creating user folder: {ex.Message}");
             }
         }
 
@@ -90,8 +217,8 @@ namespace CMLeonOS
             Console.WriteLine("====================================");
             Console.WriteLine("          System Login");
             Console.WriteLine("====================================");
-            Console.WriteLine("Username: admin");
+            Console.WriteLine("Press any key to continue...");
-            Console.WriteLine("Password:");
+            Console.ReadKey(true);
             
             // 检测ALT+Space按键
             bool useFixMode = false;
@@ -142,50 +269,48 @@ namespace CMLeonOS
                 }
                 else
                 {
-                    // 正常密码输入
+                    // 正常登录流程
-                    string password = "";
+                    Console.Write("Username: ");
-                    password += keyInfo.KeyChar;
+                    string username = Console.ReadLine();
-                    Console.Write("*");
                     
-                    while (true)
+                    if (string.IsNullOrWhiteSpace(username))
                     {
-                        var passKey = Console.ReadKey(true);
+                        Console.WriteLine("Username cannot be empty.");
-                        if (passKey.Key == ConsoleKey.Enter)
+                        return false;
+                    }
+                    
+                    Console.Write("Password: ");
+                    string password = ReadPassword();
+                    
+                    // 查找用户
+                    User foundUser = null;
+                    foreach (User user in users)
+                    {
+                        if (user.Username.ToLower() == username.ToLower())
                         {
-                            Console.WriteLine();
+                            foundUser = user;
                             break;
                         }
-                        else if (passKey.Key == ConsoleKey.Backspace)
-                        {
-                            if (password.Length > 0)
-                            {
-                                password = password.Substring(0, password.Length - 1);
-                            }
-                        }
-                        else
-                        {
-                            password += passKey.KeyChar;
-                            Console.Write("*");
-                        }
                     }
                     
-                    try
+                    if (foundUser == null)
                     {
-                        string storedPassword = File.ReadAllText(adminPasswordFilePath);
+                        Console.WriteLine("User not found.");
-                        if (password == storedPassword)
+                        return false;
-                        {
-                            Console.WriteLine("Login successful!");
-                            return true;
-                        }
-                        else
-                        {
-                            Console.WriteLine("Invalid password. Please try again.");
-                            return false;
-                        }
                     }
-                    catch (Exception ex)
+                    
+                    if (foundUser.Password == password)
                     {
-                        Console.WriteLine($"Error during login: {ex.Message}");
+                        Console.WriteLine("Login successful!");
+                        
+                        // 创建用户文件夹
+                        CreateUserFolder(foundUser.Username);
+                        
+                        return true;
+                    }
+                    else
+                    {
+                        Console.WriteLine("Invalid password. Please try again.");
                         return false;
                     }
                 }
@@ -206,6 +331,202 @@ namespace CMLeonOS
             return false;
         }
 
+        public bool AddUser(string args, bool isAdmin)
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine($"        Add {(isAdmin ? "Admin" : "User")}");
+            Console.WriteLine("====================================");
+            
+            string[] parts = args.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+            if (parts.Length < 2)
+            {
+                Console.WriteLine("Error: Please specify username and password");
+                Console.WriteLine($"Usage: user add {(isAdmin ? "admin" : "user")} <username> <password>");
+                return false;
+            }
+            
+            string username = parts[0];
+            string password = parts[1];
+            
+            // 检查用户名是否已存在
+            foreach (User user in users)
+            {
+                if (user.Username.ToLower() == username.ToLower())
+                {
+                    Console.WriteLine($"Error: User '{username}' already exists.");
+                    return false;
+                }
+            }
+            
+            try
+            {
+                User newUser = new User
+                {
+                    Username = username,
+                    Password = password,
+                    IsAdmin = isAdmin
+                };
+                users.Add(newUser);
+                SaveUsers();
+
+                // 创建用户文件夹
+                CreateUserFolder(username);
+
+                Console.WriteLine($"{(isAdmin ? "Admin" : "User")} '{username}' created successfully!");
+                Console.WriteLine("You shall restart the system to apply the changes.");
+                
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error adding user: {ex.Message}");
+                return false;
+            }
+        }
+
+        public bool DeleteUser(string username)
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine("        Delete User");
+            Console.WriteLine("====================================");
+            
+            if (string.IsNullOrWhiteSpace(username))
+            {
+                Console.WriteLine("Error: Please specify username");
+                Console.WriteLine("Usage: user delete <username>");
+                return false;
+            }
+            
+            // 查找用户
+            User foundUser = null;
+            foreach (User user in users)
+            {
+                if (user.Username.ToLower() == username.ToLower())
+                {
+                    foundUser = user;
+                    break;
+                }
+            }
+            
+            if (foundUser == null)
+            {
+                Console.WriteLine($"Error: User '{username}' not found.");
+                return false;
+            }
+            
+            // 检查是否是最后一个管理员
+            int adminCount = 0;
+            foreach (User user in users)
+            {
+                if (user.IsAdmin)
+                {
+                    adminCount++;
+                }
+            }
+            
+            if (foundUser.IsAdmin && adminCount <= 1)
+            {
+                Console.WriteLine("Error: Cannot delete the last admin user.");
+                return false;
+            }
+            
+            try
+            {
+                users.Remove(foundUser);
+                SaveUsers();
+                Console.WriteLine($"User '{username}' deleted successfully!");
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error deleting user: {ex.Message}");
+                return false;
+            }
+        }
+
+        public void ListUsers()
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine("        User List");
+            Console.WriteLine("====================================");
+            
+            if (users.Count == 0)
+            {
+                Console.WriteLine("No users found.");
+                return;
+            }
+            
+            Console.WriteLine();
+            foreach (User user in users)
+            {
+                string userType = user.IsAdmin ? "[ADMIN]" : "[USER]";
+                Console.WriteLine($"{userType} {user.Username}");
+            }
+        }
+
+        public bool ChangePassword()
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine("        Change Password");
+            Console.WriteLine("====================================");
+            
+            Console.Write("Please enter your current password: ");
+            string currentPassword = ReadPassword();
+            
+            // 查找当前登录用户
+            User currentUser = null;
+            foreach (User user in users)
+            {
+                if (user.Username.ToLower() == "current")
+                {
+                    currentUser = user;
+                    break;
+                }
+            }
+            
+            if (currentUser == null)
+            {
+                Console.WriteLine("Error: No user logged in.");
+                return false;
+            }
+            
+            Console.Write("Please enter your new password: ");
+            string newPassword = ReadPassword();
+            
+            Console.WriteLine("Please confirm your new password: ");
+            string confirmPassword = ReadPassword();
+            
+            if (newPassword == confirmPassword)
+            {
+                try
+                {
+                    currentUser.Password = newPassword;
+                    SaveUsers();
+                    Console.WriteLine("Password changed successfully!");
+                    return true;
+                }
+                catch (Exception ex)
+                {
+                    Console.WriteLine($"Error changing password: {ex.Message}");
+                    return false;
+                }
+            }
+            else
+            {
+                Console.WriteLine("New passwords do not match.");
+                return false;
+            }
+        }
+
+        public void Logout()
+        {
+            Console.WriteLine("====================================");
+            Console.WriteLine("        User Logout");
+            Console.WriteLine("====================================");
+            Console.WriteLine("Logging out...");
+            Console.WriteLine("Logout successful!");
+        }
+
         private string ReadPassword()
         {
             string password = "";
@@ -222,8 +543,6 @@ namespace CMLeonOS
                     if (password.Length > 0)
                     {
                         password = password.Substring(0, password.Length - 1);
-                        // 简化退格处理，只修改password字符串
-                        // 在Cosmos中，Console.Write("\b \b")可能不被支持
                     }
                 }
                 else
@@ -234,51 +553,5 @@ namespace CMLeonOS
             }
             return password;
         }
-
-        public bool ChangePassword()
-        {
-            Console.WriteLine("====================================");
-            Console.WriteLine("        Change Password");
-            Console.WriteLine("====================================");
-            
-            // 验证当前密码
-            Console.WriteLine("Please enter your current password:");
-            string currentPassword = ReadPassword();
-            
-            try
-            {
-                string storedPassword = File.ReadAllText(adminPasswordFilePath);
-                if (currentPassword != storedPassword)
-                {
-                    Console.WriteLine("Current password is incorrect.");
-                    return false;
-                }
-                
-                // 设置新密码
-                Console.WriteLine("Please enter your new password:");
-                string newPassword = ReadPassword();
-                
-                Console.WriteLine("Please confirm your new password:");
-                string confirmPassword = ReadPassword();
-                
-                if (newPassword == confirmPassword)
-                {
-                    // 存储新密码
-                    File.WriteAllText(adminPasswordFilePath, newPassword);
-                    Console.WriteLine("Password changed successfully!");
-                    return true;
-                }
-                else
-                {
-                    Console.WriteLine("New passwords do not match.");
-                    return false;
-                }
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"Error changing password: {ex.Message}");
-                return false;
-            }
-        }
     }
-}
+}