1. 两人在线对弈，界面显示棋盘和已下的棋子。棋盘为3X3网格，棋子落在格子中。用“o”和“X”表示两种棋子；

　　2. 某方的三个棋子连成一条线即赢；-1 Web-based submission system. 2 user registration function to register the author' s information. 3 authors can upload manuscr ipt. 4 The administrator can check all the documents, and can modify the manuscr ipt dealing with the state (to be processed, reviewers, the rejection, hiring).