一个用C++ 写成的井字过三关程序，程序会自动选择玩家或计算机先走，但是计算机是永不会输的啊！ -a written tic-tac-toe procedure, the program will automatically choose players or computer ahead, But the computer will never lose ah!

一个用C++ 写成的井字过三关程序，程序会自动选择玩家或计算机先走，但是计算机是永不会输的啊！ -a written tic-tac-toe procedure, the program will automatically choose players or computer ahead, But the computer will never lose ah!