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import java.util.Scanner;
import java.util.Random;

public class Main {
    public static void main(String[] args) {
        Random random = new Random();
        int randomNumber = random.nextInt(10);
        Scanner input = new Scanner(System.in);
        int guess;
        do {
            System.out.print("请输入您猜的数字（0-9之间）：");
            guess = input.nextInt();
            if (guess == randomNumber) {
                System.out.println("恭喜您，答对了！");
            } else if (guess > randomNumber) {
                System.out.println("很遗憾，您猜大了！");
            } else {
                System.out.println("很遗憾，您猜小了！");
            }
        } while (guess != randomNumber);
    }
}