java猜数字小游戏。用eclipse写的

import?java.util.Scanner;

public?class?GuessNum?{

public?static?void?main(String[]?args)?

{

System.out.println("======猜数字游戏======n");

int?answer?=?(int)(Math.random()?*?200?+?1);

Scanner?sr?=?new?Scanner(System.in);

while(true)?{

System.out.print("请输入你猜的数字（1-200）：");

int?in?=?sr.nextInt();

if?(in?>?answer)?{

System.out.println("猜大了！n");

}?else?if(in?<?answer){

System.out.println("猜小了！n");

}?else?{

System.out.println("恭喜你，才猜对了！！！n");

break;

}

}

sr.close();

}

}