五子棋课程设计，1拥有一个良好的进入界面，以及必要的选项；

2拥有一个二维的数组来记录和更新实时的状态，并且能够有一种方法在DOS界面下绘制出整个棋局的实时状态（包括棋盘和棋子）；

3能够通过键盘上的按键完成所选位置的移动和选定操作；

4能够在每一次的走棋后判定是否游戏结束（棋盘走满或者是一方胜出）；

5能够完成悔棋的功能，并保证这之间的棋局绘图能够与二维数组数据同步，做到真正意义上的悔棋。

-Backgammon curriculum design, an entry with a good interface, and the necessary options

2 has a two-dimensional array to record and update the real-time status, and to have a way to draw in the DOS interface, real-time status of the entire chess game (including board and pieces)

3 keys on the keyboard can be done through the selected location of mobile and selected operations

4 can go in every chess game ends after the decision is (to go full board or one win)

5 to complete the undo function, and to ensure that this chess game between two-dimensional array of data and graphics can be synchronized, so the true sense of undo.