上下左右合并数字，拼出2048方块
玩法: 使用方向键移动方块。当两个数字相同的方块相撞时，它们就会合并为一个！
Note: FuCk WorLd
Created by Mr.yao Based on 1024 by Veewo Studio and conceptually similar to Threes by Asher Vollmer.