此程序完成了五子棋游戏的基本规则，包括棋盘格的绘制，落子，悔棋，保护现场，恢复现场，五字连珠胜利的算法。-This program completed the basic rules of backgammon games, drawing, including checkerboard, Lazi, undo, to protect the site and restore the site, algorithms five words Pente victory.