在西洋棋中的武士（knight）与象棋中的马相似，走的是L型路线，输入一个表示期盼的大小值n，在输入一个起点坐标，找出一条从那一个起点，可以让武士棋走完n*n格而不重复的路径。-Chess samurai (knight) is similar to chess horse, taking the L-shaped route, enter a look forward to the size of the value of n, enter a starting point coordinates, find one from that starting point, you can let the warrior chess finish n* n grid without repeating the path.