拆分代码7

shell/Commands/Utility/Base64Command.cs

@@ -0,0 +1,67 @@
+using System;
+
+namespace CMLeonOS.Commands.Utility
+{
+    public static class Base64Command
+    {
+        public static void ProcessBase64Command(string args, Action<string> showError, Action<string> showSuccess)
+        {
+            string[] parts = args.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+            
+            if (parts.Length == 0)
+            {
+                showError("Error: Please specify subcommand");
+                showError("Usage: base64 encrypt <text> | base64 decrypt <text>");
+                return;
+            }
+            
+            string subcommand = parts[0].ToLower();
+            
+            if (subcommand != "encrypt" && subcommand != "decrypt")
+            {
+                showError("Error: Invalid subcommand");
+                showError("Usage: base64 encrypt <text> | base64 decrypt <text>");
+                return;
+            }
+            
+            if (parts.Length < 2)
+            {
+                showError("Error: Please specify text to process");
+                showError($"Usage: base64 {subcommand} <text>");
+                return;
+            }
+            
+            string text = string.Join(" ", parts, 1, parts.Length - 1);
+            
+            Console.WriteLine("====================================");
+            Console.WriteLine("        Base64");
+            Console.WriteLine("====================================");
+            Console.WriteLine();
+            
+            try
+            {
+                if (subcommand == "encrypt")
+                {
+                    string encoded = Base64Helper.Encode(text);
+                    Console.WriteLine($"Original: {text}");
+                    Console.WriteLine();
+                    Console.WriteLine($"Encoded: {encoded}");
+                }
+                if (subcommand == "decrypt")
+                {
+                    string decoded = Base64Helper.Decode(text);
+                    Console.WriteLine($"Encoded: {text}");
+                    Console.WriteLine();
+                    Console.WriteLine($"Decoded: {decoded}");
+                }
+                
+                Console.WriteLine();
+                showSuccess("Base64 operation completed");
+            }
+            catch (Exception ex)
+            {
+                showError($"Base64 error: {ex.Message}");
+            }
+        }
+    }
+}