import java.util.Scanner;

public class Hi{
	public static void main(String[] args) {
		Scanner user = new Scanner(System.in);
		System.out.println("请输入数字：1.剪刀；2.石头；3.布");
		int userchoice = user.nextInt();
		int random = (int)(1+Math.random()*3);
		String robotchoice = null;
		switch(random) {
		case 1:
			robotchoice = "剪刀";
			break;
		case 2:
			robotchoice = "石头";
			break;
		case 3:
			robotchoice = "布";
			break;
		}
		System.out.println("机器人的选择：" + robotchoice);
		int result = userchoice - random;
		switch(result) {
		case -2:
			System.out.println("你赢了");
			break;
		case -1:
			System.out.println("你输了");
			break;
		case 0:
			System.out.println("平局");
			break;
		case 1:
			System.out.println("你赢了");
			break;
		case 2:
			System.out.println("你输了");
				break;
		default:
			System.out.println("你的输入不符合要求！");
			break;
		}
		
	}
}