java 猜数字

import java.util.Scanner;
import java.util.Random;
public class Hellword {
    public static void main(String[] args) {
        //猜数字
        Random r = new Random();
        int num = r.nextInt(100)+1;

        while (true){
            Scanner sc = new Scanner(System.in);
            System.out.println("请输入你猜的数字：");
            int gessNum = sc.nextInt();
            if (gessNum>num){
                System.out.println("你猜的数字"+gessNum+"太大了。");
            }else if (gessNum<num){
                System.out.println("你猜的数字"+gessNum+"太小了。");
            }else {
                System.out.println("你猜中了。");
                break;
            }
        }