三字棋游戏，两个游戏者在3*3的网络中轮流做标记，一个人用x，一个人用o。如果一个游戏着在网络的水平、垂直或者对角线方向上作了3个连续的标记，游戏就以这个游戏者得胜而告终。当网格所有的单元格都填满了标记而没有一个游戏者获胜的话，就出现平局。编写一个玩三字棋游戏：1、程序提示第一个游戏者输入x标记，接着提示第二个游戏者输入o标记。每输入一个标记后，程序刷新棋盘并显示游戏状态（获胜、平局或者未结束）2、为了输入标记，通过输入对话框提示用户输入标记的行和列坐标。-Words chess games, both in Game 3* 3 rotation of the network to do marking, a person with x, a person with o. If a game at the network level, vertical or diagonal direction made up of three consecutive markers, games were on the winning of the game ended. When all grid cells are filled with tags and those who did not win a game, it there a draw. The preparation of a chess game to play the words: one, the program prompts the first player input x tags, and then prompted the second player input o tag. Enter a tag for each post, the program refreshes and displays the Game status board (win, draw or not The End) 2, in order to enter tags, by entering the dialog box prompts the user for marking the coordinates of rows and columns.