import j*a.util.*;

public class SimpleQASystem {
    private Map<String, String> qaMap = new HashMap<>();

    public SimpleQASystem() {
        // 初始化问答对
        qaMap.put("你好", "你好！有什么我可以帮你的吗？");
        qaMap.put("你叫什么", "我是J*a开发的问答机器人。");
        qaMap.put("今天天气怎么样", "我无法获取实时天气，建议查看天气应用。");
        qaMap.put("再见", "再见！祝你有美好的一天！");
    }
}

public String respond(String question) {
    // 简单清洗：转小写，去标点
    String cleaned = question.toLowerCase().replaceAll("[^a-z\u4e00-\u9fa5]", "");

    for (Map.Entry<String, String> entry : qaMap.entrySet()) {
        String key = entry.getKey().toLowerCase();
        // 判断是否包含关键词
        if (cleaned.contains(key) || key.contains(cleaned)) {
            return entry.getValue();
        }
    }
    return "抱歉，我不太明白你的意思。";
}

public static void main(String[] args) {
    SimpleQASystem system = new SimpleQASystem();
    Scanner scanner = new Scanner(System.in);
    System.out.println("欢迎使用问答系统！输入'退出'结束对话。");

    while (true) {
        System.out.print("你：");
        String input = scanner.nextLine();
        if (input.equals("退出")) {
            System.out.println("系统：再见！");
            break;
        }
        String response = system.respond(input);
        System.out.println("系统：" + response);
    }
    scanner.close();
}