public static void main(String[] args) {
		String s = tankString(new Tank(new Point(5, 5), 7, "asd"));
//		String s = tankString(n);
		System.out.println(s);
//		Tank t = getTank(s);
//		System.out.println("ɵ̹:"+t.toString());
//		ArrayList<Tank> tanks = new ArrayList<Tank>();
//		tanks.add(new Tank(new Point(5, 5), 7, "asd"));
//		tanks.add(new Tank(new Point(5, 5), 7, "asd"));
//		tanks.add(new Tank(new Point(4, 4), 6, "212"));
//		tanks.add(new Tank(new Point(4, 4), 6, "212"));
//		String s = tanksString(tanks);
//		System.out.println("tanksStrin="+s);
//		ArrayList<Tank> tanks2 = new ArrayList<Tank>();
//		for(Tank t:tanks2){
//			System.out.println(t);
//		}
//		System.out.println("ȡtanks2="+tanks2.size());
	}