barbs 攻城 每个barb有自己的攻击力，有守城的sword和archer等 他们也分别有自己的攻击力 每一步可以移动守卫到东南西北四个方向 -Each barb barbs siege has its own attack power, the sword and the archer has defenders such as they attack each have their own guards each step you can move to the four corners