System.out.println("""
1. Rock
2. Scissors
3. Paper
""");
System.out.println("请输入的你的选择:\n");
// 设置输入
Scanner scanner = new Scanner(System.in);
int choice = scanner.nextInt();
int random = 1+ (int)(Math.random()*3);
System.out.println("你的选择是"+GetGameChoice(choice));
System.out.println("电脑的选择是"+GetGameChoice(random));
if (GetGameChoice(choice) == "无效选择"){
System.out.println("退出游戏");
}else if (choice == random){
System.out.println("平局");
}else{
switch (choice){
case 1 : // 用户石头
if (random == 2){ // 电脑剪刀
System.out.println("你赢了");
}else {
System.out.println("你输了");
}
break;
case 2 : // 用户剪刀
if (random == 1){ //电脑选择布
System.out.println("你输了");
}else
System.out.println("你赢了");
case 3 : //用户布
if(random == 1){ // 电脑选择石头
System.out.println("你赢了");
}else
System.out.println("你输了");
}
}

}
public static String GetGameChoice(int choice){
switch (choice){
case 1 :
return "Rock";
case 2 :
return "Scissors";
case 3:
return "Paper";
default:
return "无效选择";
}
}