猜数字小游戏——Java实现-蒲公英云

猜数字小游戏——Java实现

//猜数字小游戏
import java.util.Random;
import java.util.Scanner;
public class helloworld{
    public static void main(String[] args) {
        System.out.println("***************************");
        System.out.println("********** 1.play *********");
        System.out.println("********** 0.exit *********");
        System.out.println("***************************");
        Scanner scanner = new Scanner(System.in);
        int input = 1;
        do{
            System.out.println("请输入你的选择！");
            input  = scanner.nextInt();
            switch (input){
                case 1:
                    System.out.println("开始游戏！");
                    Random random = new Random();
                    int rand_num  = random.nextInt(100);//伪随机数在[0,100)
                    while(true){
                        System.out.println("请输入你猜的数：");
                        int  x = scanner.nextInt();;
                        if(x>rand_num){
                            System.out.println("猜大了");
                        }
                        else if(x<rand_num){
                            System.out.println("猜小了");
                        }
                        else{
                            System.out.println("猜对了！");
                            break;
                        }
                    }
                    break;
                case 0:
                    System.out.println("游戏结束！");
                    break;
                default:
                    System.out.println("输入格式错误，请重新输入！");
                    break;
            }
        }while(input != 0);
    }
}