猜数字游戏。

public class GuessNum {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入一个整数");
int guessNum = (int) (Math.random() * 100) + 1;
while (true) {
int result = sc.nextInt();
if (result > guessNum) {
System.out.println("大了");
} else if (result < guessNum) {
System.out.println("小了");
} else {
System.out.println("猜中了");
break;
}
}
}

}