//?Tic-Tac-Toe
//?Plays?the?game?of?tic-tac-toe?against?a?human?opponent

#include?
#include?
#include?
#include?

using?namespace?std;

//?global?constants
const?char?X?=?‘X‘;
const?char?O?=?‘O‘;
const?char?EMPTY?=?‘?‘;
const?char?TIE?=?‘T‘;
const?char?NO_ONE?=?‘N‘;

//?function?prototypes
void?instructions（）;
char?askYesNo（string?question）;
int?askNumber（string?question?int?high?int?low?=?0）;
char?humanPiece（）;
char?opponent（char?piece）;
void?displayBoard（const?vector&?board）;
char?winner（const?vector&?board）;
bool?isLegal（const?vector&?board?int?move）;
int?humanMove（const?vector&?board?char?human）;
int?computerMove（vector?board?char?computer）;
void?announceWinner（char?winner?char?compute

?屬性????????????大小?????日期????時間???名稱
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?????文件????????7422??2012-09-21?21:30??tic-tac-toe（三連棋游戲）.cpp