List<String> stocks = new ArrayList<>();
        for (int i=0;i<27;i++){
            stocks.add(i+"");
        }
        int pageSize = 10; //设置每页数据为十条
        int pageNumber = 1; //第几页
        int start = (pageNumber - 1) * pageSize;
        int count = stocks.size();
        List<String> newStocks1 = stocks.subList(start,count-start>pageSize?start+pageSize:count);
        System.out.println(newStocks1);

        pageNumber = 2;
        start = (pageNumber - 1) * pageSize;
        List<String> newStocks2 = stocks.subList(start,count-start>pageSize?start+pageSize:count);
        System.out.println(newStocks2);


        pageNumber = 3;
        start = (pageNumber - 1) * pageSize;
        List<String> newStocks3 = stocks.subList(start,count-start>pageSize?start+pageSize:count);
        System.out.println(newStocks3);