该程序是TICTACTOE游戏，棋盘为3*3，3个棋子连起来即为赢。输入参数时，若输入的数字超过边界或在已有棋子的地方再输入，则提示出错，要求重新输入。-The program is TICTACTOE games, board 3* 3, 3 pieces put together is the win. When the input parameters, if digital input over the border or in a place and then enter the existing pieces, then prompt an error, requiring re-enter.