多任务

shell/Commands/System/KillCommand.cs

@@ -0,0 +1,57 @@
+using System;
+
+namespace CMLeonOS.Commands.System
+{
+    public static class KillCommand
+    {
+        public static void KillProcess(string args, Action<string> showError, Action<string> showWarning)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(args))
+                {
+                    showError("Usage: kill <process_id>");
+                    showError("Example: kill 123");
+                    return;
+                }
+                
+                if (!ulong.TryParse(args, out ulong processId))
+                {
+                    showError($"Invalid process ID: {args}");
+                    showError("Process ID must be a number.");
+                    return;
+                }
+                
+                Process process = ProcessManager.GetProcessById(processId);
+                if (process == null)
+                {
+                    showError($"Process not found: {processId}");
+                    showError("Use 'ps' command to list all processes.");
+                    return;
+                }
+                
+                if (process.Name == "Shell")
+                {
+                    showError("Cannot kill Shell process.");
+                    showError("Use 'exit' command instead.");
+                    return;
+                }
+                
+                if (!process.IsRunning)
+                {
+                    showWarning($"Process {process.Name} ({processId}) is already stopped.");
+                    return;
+                }
+                
+                CMLeonOS.Logger.Logger.Instance.Info("Kill", $"Killing process: {process.Name} ({processId})");
+                process.TryStop();
+                
+                Console.WriteLine($"Process {process.Name} ({processId}) stopped successfully.");
+            }
+            catch (Exception ex)
+            {
+                showError($"Error killing process: {ex.Message}");
+            }
+        }
+    }
+}