import java.util.Random; import java.util.Scanner; public class testRandomGame { public static void main(String[] args) { Random r = new Random(); int luckNumber = r.nextInt(100)+1;//生成一个答案数字(1-100) Scanner sc = new Scanner(System.in); //死循环 while(true){ System.out.println("请输入一个1-100之间的整数"); int number = sc.nextInt(); if(number > luckNumber){ System.out.println("你输入的数字过大"); }else if(number < luckNumber){ System.out.println("你输入的数字过小"); }else{ System.out.println("恭喜你,猜中了"); break; } } } }