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    python 表格打印代码实例解析

    栏目:代码类 时间:2019-11-02 06:04

    编写一个名为printTable()的函数,它接受字符串的列表的列表,将它显示在组织良好的表格中,每列右对齐。假定所有内层列表都包含同样数目的字符串。例如,该值可能看起来像这样:

    table_data = [['apples', 'oranges', 'cherries', 'banana'],
        ['Alice', 'Bob', 'Carol', 'David'],
        ['dogs', 'cats', 'moose', 'goose']]

    你的 printTable()函数将打印出:

    apples Alice dogs
    oranges Bob cats
    cherries Carol moose
    banana David goose 

    示例代码1:

    import copy
     
     
    def count_width(the_list):
     new_list = copy.deepcopy(the_list)
     col_widths = [0]*len(the_list)
     i = 0
     while i < len(new_list):
      new_list[i].sort(key=lambda x: len(x), reverse=True)
      col_widths[i] = new_list[i][0]
      i = i+1
     return col_widths
    def list_ljust(the_list):
     widths = count_width(the_list)
     for j in range(len(the_list[0])):
      for i in range(len(the_list)):
       print(the_list[i][j].ljust(len(widths[i])), end=' ')
      print('\r')
    table_data = [['apples', 'oranges', 'cherries', 'banana'],
        ['Alice', 'Bob', 'Carol', 'David'],
        ['dogs', 'cats', 'moose', 'goose']]
    list_ljust(table_data) 

    sort方法:

    lambda函数:

    示例代码2:

    def count_widths(the_list):
     col_widths = [0]*len(the_list)
     for i in range(len(the_list)):
      for j in range(len(the_list[0])):
       if len(the_list[i][j]) > max_len:
        max_len = len(the_list[i][j])
      col_widths[i] = max_len
     return col_widths
     
     
    def list_ljust(the_list):
     widths = count_widths(the_list)
     print(widths)
     for j in range(len(the_list[0])):
      for i in range(len(the_list)):
       print(the_list[i][j].ljust(widths[i]), end=' ')
      print('\r')
     
     
    table_data = [['apples', 'oranges', 'cherries', 'banana'],
        ['Alice', 'Bob', 'Carol', 'David'],
        ['dogs', 'cats', 'moose', 'goose']]
    list_ljust(table_data)

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