用纯C编写的在DOS界面下操作的五子棋游戏，有悔棋，保留棋局待下次继续，和读取系统棋局开始对弈和浏览历史胜局等功能，欢迎查阅-Pure C written to operate in the DOS interface Gobang game, with the functions:undo, to retain the chess game next to continue , reading system chessboard chess ,and browse the history of