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  • 统计一个字符串中每个字符出现的次数和井字棋盘游戏

    练习有一个小程序,计算一个字符串中每个字符出现的次数。

    代码如下:

    #统计一个字符串中每个字符出现的次数
    messages = 'It was a bright cold day in Feb 23,and the clocks were striking twelve'
    count = {}
    for i in messages:
    count.setdefault(i,0)
    count[i] = count[i] + 1
    print(count)

    执行结果如下:

    井字棋盘数据结构建模例子:
    代码如下:
    #井字棋盘,数据结构建模
    chessboard = {'t-l':' ','t-c':' ','t-r':' ',
    'c-l':' ','c-c':' ','c-r':' ',
    'b-l':' ','b-c':' ','b-r':' '
    }
    def printboadr(board):
    print(board['t-l']+'|'+board['t-c']+'|'+board['t-r'])
    print('-*-*-')
    print(board['c-l']+'|'+board['c-c']+'|'+board['c-r'])
    print('-*-*-')
    print(board['b-l']+'|'+board['b-c']+'|'+board['b-r'])
    turn = 'X'
    for i in range(9):
    printboadr(chessboard)
    print('please choose a place to fill it(for example:t-l)')
    play = input()
    chessboard[play] = turn
    if turn == 'X':
    turn = 'O'
    else:
    turn ='X'
    printboadr(chessboard)

    执行结果如下:

    后边还会有各种小练习和项目练习。

    
    
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  • 原文地址:https://www.cnblogs.com/xuexiaohun/p/6439889.html
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