剪刀石头布小游戏

这是源码

import java.util.Scanner;//1

public class sdd{

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner in=new Scanner(System.in);

        int a=0;//用户成功次数
        int b=0;//平局场次
        int c=0;//电脑成功次数
        int k=5;
        System.out.println("1 剪刀 2 石头 3 布   ");
        do
        {
            int com=(int)(Math.random()*3+1);//电脑所给的随机数 1 剪刀 2 石头 3 布
            int n=in.nextInt();//用户输入
            if(n==1)//用户输入剪刀
            {
                System.out.println("你出了剪刀");
                if(com==1)
                {
                    System.out.println("电脑：剪刀");
                    System.out.println("平局");
                    b++;
                }
                if(com==2)
                {
                    System.out.println("电脑：石头");
                    System.out.println("你输了");
                    c++;
                }
                if(com==3)
                {
                    System.out.println("电脑：布");
                    System.out.println("你赢了");
                    a++;
                }
            }
            else if(n==2)//用户输入石头
            {
                System.out.println("你出了石头");
                if(com==1)
                {
                    System.out.println("电脑：剪刀");
                    System.out.println("你赢了");
                    a++;
                }
                if(com==2)
                {
                    System.out.println("电脑：石头");
                    System.out.println("平局");
                    b++;
                }
                if(com==3)
                {
                    System.out.println("电脑：布");
                    System.out.println("你输了");
                    c++;
                }
            }
            else if(n==3)//用户输入布
            {
                System.out.println("你出了布");
                if(com==1)
                {
                    System.out.println("电脑：剪刀");
                    System.out.println("你输了");
                    c++;
                }

这是运行结果

凑合着看吧。。