在本次“五子棋“程序的编写中，只编写了人机对弈部分，运用了博弈树进行搜索，在选取最优的走步时使用极大极小分析法，考虑到搜索的时间复杂度和空间复杂度，在程序中只进行了2步搜索，即计算机在考虑下一步的走法时，只对玩家进行一步的推测。（程序中的棋盘规格为15*15）-During the meeting, " Gobang"　the preparation of procedures, only part of the preparation of the human-computer game, using a game tree search, select the best walking in the use of minimax analysis, taking into account the time complexity of search and space complexity, in the process of Step 2 is only a search, that is, the computer take the next step in considering the law, the only player to step on the speculations. (Proceedings of the board size of 15* 15)