Scanner scanner = new Scanner(System.in);

Random random = new Random();

System.out.println("欢迎来到石头、剪刀、布游戏！");

System.out.println("请输入你的选择（1代表石头，2代表剪刀，3代表布）：");

int userChoice = scanner.nextInt();

int computerChoice = random.nextInt(3) + 1;

String userInput = "";

String computerInput = "";

switch (userChoice) {

case 1:

userInput = "石头";

break;

case 2:

userInput = "剪刀";

break;

case 3:

userInput = "布";

break;

default:

System.out.println("无效的选择，请重新输入！");

return;

}

switch (computerChoice) {

case 1:

computerInput = "石头";

break;

case 2:

computerInput = "剪刀";

break;

case 3:

computerInput = "布";

break;

}

System.out.println("你选择了：" + userInput);

System.out.println("电脑选择了：" + computerInput);

if (userChoice == computerChoice) {

System.out.println("平局！");

} else if ((userChoice == 1 && computerChoice == 2) ||

(userChoice == 2 && computerChoice == 3) ||

(userChoice == 3 && computerChoice == 1)) {

System.out.println("你赢了！");

} else {

System.out.println("你输了！");

}

scanner.close();