求马的哈密顿回路,在国际相棋棋局上,一只马要经过每个点,且仅经过一次,棋局可以是非常大,要求输出马经过的所有点及路径.-Hamiltonian circuit for the horse in the international chess game of chess, the one horse to go through each point, and only after one game can be very large and require output horse after a