import java.util.Random;
import java.util.Scanner;
public class Demo02{
public static void main(String [] args){
Random r=new Random();
int i=r.nextInt(100);
while (true){
System.out.println("");
System.out.println("请输入猜测的数字:");
Scanner sc=new Scanner(System.in);
int i1=sc.nextInt();
if(i1<i){
System.out.println("您输入的过小!");