//编程语言：java
//故事主题：阿里巴巴的续集……

import java.util.ArrayList;
import story.*;

public class StoryTest {
   public static void main(String[] args) {
       Story story = new Story();
       Street street = new Street();
       story.setAddress(street);
       story.setTime("morning"); //清晨……
       scream(); //街上传来一身尖叫……
       List<Person> personList = new ArrayList();
       
       for(int = 0; i <= 50; i ++)
               personList.add(new Person()); //睡眼惺忪的人群从楼道里出来……

       Ball ball = new ball();
       ball.setVolume.(80,"m^2");
       street.addObject(ball); //一个梆大的球横躺在街道中间……
   }
}

// go on
}