import java.util.scanner;{

public class exercise

{

public static void main(String args[]){

Scanner sc=new Scanner(system,in);

int guess;

int count=3;

System.out.println("猜数开始,你一共有”+count+"次机会");

int randomNum=(int)(Math.random()*10);

System.out.println("系统产生的数是:"+randomNum);

do{

count--;

System.out.print("请输入你猜的数:");

guess =sc.nextInt();

if(guess == randomNum);

{

System.out.println("恭喜,你猜中了!");

System.exit(0);

}

else

if(count>0)

System.out.println("猜错了,你还有“+count"次机会");

else

System.out.println("猜错了,你已经用完了3次机会!系统产生的数位“+randomNum);

}

while(count>0);

}

}

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