import java.util.Scanner;

 import java.util.Random;

 public class TestGuess{

     public static void main(String[] args){

         Scanner yc = new Scanner(System.in);

         Random cy = new Random();

         System.out.println("==============================================");

         System.out.println("====================人机猜拳==================");

         System.out.println("==============================================");

         System.out.println("====数字1 = 剪刀  数字2 = 石头  数字3 = 布====");

         System.out.println("==============================================");

         int computerCount = 0;    //电脑的获胜次数

         int playerCount = 0;    　//玩家的获胜次数

         for(int i = 1;i <= 3;){

             int computer = cy.nextInt(3) + 1;    //表示随机获得0、1、2；追加1后，变为1、2、3

             System.out.println("请玩家输入对应的数字：");

             int player = yc.nextInt();

             //比较猜拳

             if(computer == player){        //平局

                 System.out.println("平局，再接再厉！");

                 continue;                  //不加    

             }else if((player == 1 && computer == 3)||(player == 2 && computer == 1)||(player == 3 && computer == 2)){

                 System.out.println("恭喜，您赢得了对局！");

                 playerCount++;            //玩家胜率+1

             }else{

                 System.out.println("很遗憾，您未赢得对局！");

             }

             //判断双方是否已经存在其中一方连胜两局的情况

             if(playerCount == 2||computerCount == 2){

                 break;

             }

             i++;

         }

             if(playerCount == 2){

                 System.out.println("游戏结束，玩家获胜！");

             }else{

                 System.out.println("游戏结束，电脑获胜！");

         }

     }

 }

*如有不足 还请多多指点！