8*8的国际象棋棋盘上的一只马，恰好走过除起点外的其它63个位置各一次，最后回到起点，这条线路成为马的一条Hamilton周游路线-8* 8 chess board on a horse, just walked the other outside the starting point of the 63 position each time, and finally back to the starting point, the lines become a horse of a Hamilt