The Play X and Play O buttons are at the top with the tic-tac-toe game board in the middle of the display .

PlayX与PlayO按钮显示在显示屏中间 tic-tac-toe游戏面板的顶部。

This time we are going to work on finishing our Tic-Tac-Toe program .

此次，我们将要着手完成我们的 井 字 过 三关程序。

You should be able to modify the code from last month to deal with this or at least write one from scratch to simply be a desktop tic-tac-toe program .

你应当能够通过修改上期的代码来解决这个问题，或者，至少 自己 快速写一个可以 被 称作 井 字 过 三关的程序。

Imagine two people playing tic-tac-toe .

想象两个人玩 井 字 游戏。

They play chess as well as they play tic-tac-toe .

他们下象棋和玩 连城 游戏 同样 出色。