上传文件至 'project'

project/Command.java

@@ -0,0 +1,9 @@
+package project.command;
+
+import project.view.CliView;
+
+public interface Command {
+    String getName();
+    String getDescription();
+    void execute(String[] args, CliView view);
+}

project/Main.java

@@ -0,0 +1,41 @@
+package project;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Scanner;
+import project.command.*;
+import project.controller.CrawlController;
+import project.view.CliView;
+
+public class Main {
+    private static boolean running = true;
+
+    public static void main(String[] args) {
+        CliView view = new CliView();
+        CrawlController controller = new CrawlController();
+
+        Map<String, Command> commands = new HashMap<>();
+        commands.put("crawl", new CrawlCommand(controller, view));
+        commands.put("help", new HelpCommand(commands));
+        commands.put("exit", new ExitCommand(() -> running = false));
+
+        CommandExecutor executor = new CommandExecutor(commands, view);
+
+        if (args.length > 0) {
+            String input = String.join(" ", args);
+            executor.execute(input);
+            return;
+        }
+
+        view.printBanner();
+        view.printHelp(commands);
+
+        Scanner scanner = new Scanner(System.in);
+        while (running) {
+            view.printPrompt();
+            String input = scanner.nextLine();
+            executor.execute(input);
+        }
+        scanner.close();
+    }
+}