日期：2022年5月13日
    介绍：1、这是一个简单的井字棋游戏；
    　　　2、玩家通过输入字符控制下棋的位置；
    　　　3、游戏具备判断输赢的功能；
    　　　4、游戏具备判断输入正确性的功能；

    1. ###############################################################
    2. # 日期：2022年5月13日
    3. # 介绍：1、这是一个简单的井字棋游戏；
    4. # 　　　2、玩家通过输入字符控制下棋的位置；
    5. # 　　　3、游戏具备判断输赢的功能；
    6. # 　　　4、游戏具备判断输入正确性的功能；
    7. ###############################################################
    9. import sys
    11. # 创建一个字典，用来存储棋盘位置
    12. theBoard = {'topL': ' ', 'topM': ' ', 'topR': ' ',
    13.             'midL': ' ', 'midM': ' ', 'midR': ' ',
    14.             'lowL': ' ', 'lowM': ' ', 'lowR': ' '}
    17. def printBoard(board):  # 生成一个空白的棋盘的函数
    18.     print('=================')
    19.     print('  ' + board['topL'] + '  |  ' + board['topM'] + '  |  ' + board['topR'] + '  ')
    20.     print('-----+-----+-----')
    21.     print('  ' + board['midL'] + '  |  ' + board['midM'] + '  |  ' + board['midR'] + '  ')
    22.     print('-----+-----+-----')
    23.     print('  ' + board['lowL'] + '  |  ' + board['lowM'] + '  |  ' + board['lowR'] + '  ')
    24.     print('=================')
    26. def whoWins(whichSide):  # 判断哪一方赢得了游戏的函数
    27.     while True:
    28.         if theBoard['topL'] == theBoard['topM'] and theBoard['topM'] == theBoard['topR'] and theBoard['topM'] == str(whichSide):
    29.             break
    30.         if theBoard['midL'] == theBoard['midM'] and theBoard['midM'] == theBoard['midR'] and theBoard['midM'] == str(whichSide):
    31.             break
    32.         if theBoard['lowL'] == theBoard['lowM'] and theBoard['lowM'] == theBoard['lowR'] and theBoard['lowM'] == str(whichSide):
    33.             break
    34.         if theBoard['topL'] == theBoard['midL'] and theBoard['midL'] == theBoard['lowL'] and theBoard['midL'] == str(whichSide):
    35.             break
    36.         if theBoard['topM'] == theBoard['midM'] and theBoard['midM'] == theBoard['lowM'] and theBoard['midM'] == str(whichSide):
    37.             break
    38.         if theBoard['topR'] == theBoard['midR'] and theBoard['midR'] == theBoard['lowR'] and theBoard['midR'] == str(whichSide):
    39.             break
    40.         if theBoard['topL'] == theBoard['midM'] and theBoard['midM'] == theBoard['lowR'] and theBoard['midM'] == str(whichSide):
    41.             break
    42.         if theBoard['topR'] == theBoard['midM'] and theBoard['midM'] == theBoard['lowL'] and theBoard['midM'] == str(whichSide):
    43.             break
    44.         else:
    45.             return
    46.     print(str(whichSide) + ' 赢得了游戏！')
    47.     return sys.exit()
    50. printBoard(theBoard)
    52. sideToPlay = 'X'
    53. gameTimes = 0
    54. boardLeft = ['topL', 'topM', 'topR', 'midL', 'midM', 'midR', 'lowL', 'lowM', 'lowR']
    55. while True:
    56.     gameTimes += 1
    58.     # 在屏幕上打印出游戏方
    59.     print('现在轮到 ' + sideToPlay + ' 下棋')
    61.     # 提示剩余的棋盘空格
    62.     print('请输入以下步骤之一: ', end='')
    63.     for i in range(len(boardLeft)):
    64.         print(boardLeft[i], end=', ')
    65.     print()
    67.     # 判输入的步骤是否可选
    68.     while True:
    69.         position = input()  # 输入棋子位置
    70.         if position not in boardLeft:
    71.             print('请输入正确的步骤!')
    72.         else:
    73.             boardLeft.remove(position)  # 将棋子位置从可选项中删除
    74.             break
    76.     theBoard[position] = sideToPlay
    77.     printBoard(theBoard)
    79.     # 判断此轮赛比是否有人获胜
    80.     whoWins(sideToPlay)
    82.     # 棋盘铺满仍无人获胜是，宣布平局
    83.     if gameTimes == 9:
    84.         print('游戏结束，平局!')
    85.         break
    87.     # 交换游戏双方
    88.     if sideToPlay == 'X':
    89.         sideToPlay = 'O'
    90.     else:
    91.         sideToPlay = 'X'