From 3ce85b439c4ad00d18a9a4b9a69b290430c46088 Mon Sep 17 00:00:00 2001
From: peisishuang <1767255628@qq.com>
Date: Fri, 1 May 2026 19:33:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'=E6=96=B0=E9=97=BB=E7=BD=91=E7=88=AC=E8=99=AB'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 新闻网爬虫/HelpCommand.java | 30 ++++++++++++++++++++++++++
 新闻网爬虫/ListCommand.java | 36 ++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 新闻网爬虫/HelpCommand.java
 create mode 100644 新闻网爬虫/ListCommand.java

diff --git a/新闻网爬虫/HelpCommand.java b/新闻网爬虫/HelpCommand.java
new file mode 100644
index 0000000..3ea161b
--- /dev/null
+++ b/新闻网爬虫/HelpCommand.java
@@ -0,0 +1,30 @@
+package com.cctv.news.command;
+
+import com.cctv.news.view.OutputView;
+
+public class HelpCommand implements Command {
+    private final OutputView view;
+
+    public HelpCommand(OutputView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "help";
+    }
+
+    @Override
+    public String getHelp() {
+        return "help - 显示帮助信息";
+    }
+
+    @Override
+    public void execute(String[] args) {
+        view.showMessage("可用命令:");
+        view.showMessage("  help  - 显示帮助信息");
+        view.showMessage("  list  - 显示已抓取的文章列表");
+        view.showMessage("  crawl - 爬取央视新闻");
+        view.showMessage("  exit  - 退出程序");
+    }
+}
diff --git a/新闻网爬虫/ListCommand.java b/新闻网爬虫/ListCommand.java
new file mode 100644
index 0000000..07a01cf
--- /dev/null
+++ b/新闻网爬虫/ListCommand.java
@@ -0,0 +1,36 @@
+package com.cctv.news.command;
+
+import com.cctv.news.view.OutputView;
+import java.util.List;
+
+public class ListCommand implements Command {
+    private final OutputView view;
+    private final List<String> articles;
+
+    public ListCommand(OutputView view, List<String> articles) {
+        this.view = view;
+        this.articles = articles;
+    }
+
+    @Override
+    public String getName() {
+        return "list";
+    }
+
+    @Override
+    public String getHelp() {
+        return "list - 显示已抓取的文章列表";
+    }
+
+    @Override
+    public void execute(String[] args) {
+        if (articles.isEmpty()) {
+            view.showMessage("目前没有已抓取的文章，请先使用 crawl 命令。");
+        } else {
+            view.showMessage("已抓取的文章列表:");
+            for (int i = 0; i < articles.size(); i++) {
+                view.showArticles((i + 1) + ". " + articles.get(i));
+            }
+        }
+    }
+}