W9

W9/Article.java

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+import java.time.LocalDate;
+
+public class Article {
+    private String title;
+    private String content;
+    private String author;
+    private LocalDate publishDate;
+
+    public Article(String title, String content, String author, LocalDate publishDate) {
+        this.title = title;
+        this.content = content;
+        this.author = author;
+        this.publishDate = publishDate;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public LocalDate getPublishDate() {
+        return publishDate;
+    }
+
+    public void setPublishDate(LocalDate publishDate) {
+        this.publishDate = publishDate;
+    }
+
+    @Override
+    public String toString() {
+        return "Article{" +
+                "title='" + title + '\'' +
+                ", author='" + author + '\'' +
+                ", publishDate=" + publishDate +
+                '}';
+    }
+}

W9/HistoryCommand.java

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+import java.util.ArrayList;
+import java.util.List;
+
+public class HistoryCommand {
+    private final List<String> commandHistory = new ArrayList<>();
+
+    public void addCommand(String command) {
+        commandHistory.add(command);
+    }
+
+    // 返回副本，避免外部直接修改内部列表
+    public List<String> getHistory() {
+        return new ArrayList<>(commandHistory);
+    }
+
+    public void printHistory() {
+        System.out.println("=== 命令历史 ===");
+        for (int i = 0; i < commandHistory.size(); i++) {
+            System.out.printf("%d: %s%n", i + 1, commandHistory.get(i));
+        }
+    }
+
+    public void clearHistory() {
+        commandHistory.clear();
+    }
+}

W9/Test.java

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+import java.time.LocalDate;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Pattern;
+
+public class Test {
+    // 暗色主题常量（修改一处常量示例）
+    public static final String BACKGROUND_COLOR = "#1E1E1E"; // 深灰（暗色）
+    public static final String TEXT_COLOR = "#FFFFFF";       // 白色
+
+    // 命令别名映射
+    private static final Map<String, String> ALIASES = new HashMap<>();
+    static {
+        ALIASES.put("c", "crawl");
+        ALIASES.put("h", "help");
+    }
+
+    // URL 格式验证正则
+    private static final Pattern URL_PATTERN =
+            Pattern.compile("^(https?://)?[a-zA-Z0-9-]+(\\.[a-zA-Z0-9-]+)+(/[a-zA-Z0-9-./]*)*$");
+
+    public static boolean isValidUrl(String url) {
+        if (url == null || url.isBlank()) {
+            return false;
+        }
+        return URL_PATTERN.matcher(url).matches();
+    }
+
+    public static String resolveAlias(String inputCommand) {
+        String[] parts = inputCommand.split(" ", 2);
+        String command = parts[0];
+        String args = parts.length > 1 ? parts[1] : "";
+
+        String realCommand = ALIASES.getOrDefault(command, command);
+        return args.isEmpty() ? realCommand : realCommand + " " + args;
+    }
+
+    public static void main(String[] args) {
+        // 1. 测试 Article 类
+        Article article = new Article(
+                "Java MVC 入门",
+                "这是一篇关于MVC模式的文章...",
+                "张三",
+                LocalDate.now()
+        );
+        System.out.println("=== 测试 Article 类 ===");
+        System.out.println(article);
+
+        // 2. 测试 HistoryCommand
+        HistoryCommand history = new HistoryCommand();
+        history.addCommand("c https://example.com");
+        history.addCommand("help");
+        history.addCommand("exit");
+        System.out.println("\n=== 测试 HistoryCommand ===");
+        history.printHistory();
+
+        // 3. 测试命令别名
+        System.out.println("\n=== 测试命令别名 ===");
+        System.out.println("输入：c https://test.com → 解析后：" + resolveAlias("c https://test.com"));
+        System.out.println("输入：h → 解析后：" + resolveAlias("h"));
+
+        // 4. 测试 URL 验证
+        System.out.println("\n=== 测试 URL 验证 ===");
+        System.out.println("https://example.com → " + (isValidUrl("https://example.com") ? "有效" : "无效"));
+        System.out.println("invalid-url → " + (isValidUrl("invalid-url") ? "有效" : "无效"));
+
+        // 5. 测试暗色主题常量
+        System.out.println("\n=== 测试暗色主题常量 ===");
+        System.out.println("背景色：" + BACKGROUND_COLOR);
+        System.out.println("文字色：" + TEXT_COLOR);
+    }
+}