通过这个程序，可以获得对回溯算法的基本理解。在 n × n 方格的国际象棋棋盘上，马(也称为骑士Knight)从任意指定的方格出发，以跳马规则(横一步竖两步或横两步竖一步)，周游棋盘的每一个格子，要求每个格子只能跳过一次。-Through this program, you can get a basic understanding of backtracking algorithms. On the chess board n n squares, Ma (also known as Knight Knight)　any given grid to vault rules (horizontal, vertical, two-step or two-step vertical horizontal step), travel around the board each plaid, it requires that each grid can only skip once.