import java.util.Scanner;public class JianDao{
    public static void main(String[] args){
        //系统出拳        int pc = (int)(Math.random()*(4-1)+1);        //玩家出拳        Scanner input = new Scanner(System.in);        System.out.print("出拳: j(剪刀),s(石头),b(布)): ");        String ww = input.nextLine();        switch (pc){
            case 1:
                switch (ww){
                    case "j":
                        System.out.println( "电脑 : 剪刀 " + "平局");                        break;                    case "s":
                        System.out.println( "电脑 : 剪刀 " + "win");                        break;                    case "b":
                        System.out.println( "电脑 : 剪刀 " + "lose");                        break;                    default:
                        System.out.println( "lose");                        break;                }
                break;            case 2:
                switch (ww){
                    case "j":
                        System.out.println( "电脑 : 石头 " + "lose");                        break;                    case "s":
                        System.out.println( "电脑 : 石头 " + "平局");                        break;                    case "b":
                        System.out.println( "电脑 : 石头 " + "win");                        break;                    default:
                        System.out.println( "lose");                        break;                }
                break;            case 3:
                switch (ww){
                    case "j":
                        System.out.println( "电脑 : 布 " + "win");                        break;                    case "s":
                        System.out.println( "电脑 : 布 " + "lose");                        break;                    case "b":
                        System.out.println( "电脑 : 布 " + "平局");                        break;                    default:
                        System.out.println( "lose");                        break;                }
                break;            default:
                break;        }
    }
}