public class Main { public static void main(String[] args) { Scanner scnaner=new Scanner(System.in); System.out.println("石头请输入:1,剪刀请输入:2,布请输入:3"); int choice = scnaner.nextInt(); int random = 1+(int)(Math.random()*3); switch (choice-random){ case 0 -> System.out.printf("你输入%s,电脑输入%s,平局\n",choice,random); case 1 -> System.out.printf("你输入%s,电脑输入%s,你输了\n",choice,random); case 2 -> System.out.printf("你输入%s,电脑输入%s,你赢了\n",choice,random); case -1 -> System.out.printf("你输入%s,电脑输入%s,你赢了\n",choice,random); case -2-> System.out.printf("你输入%s,电脑输入%s,你输了\n",choice,random); default -> System.out.println("输入有误请重新输入"); } }}
简单