Python学习-表格打印字符串列表

快来打我* 2022-01-22 11:43 307阅读 0赞

**题目：**  
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：

--------------------

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

--------------------

你的 printTable()函数将打印出：

--------------------

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

--------------------

# 获取一维列表中字符串法的最大长度
    def maxlen(tableData):
        num = 0
        for i in range(len(tableData)):
            if num < len(tableData[i]):
                num = len(tableData[i])
    
        # 返回列表中最长的字符串的长度
        return num
    
    # 二位列表将列表以行格式化打印
    # apples oranges cherries banana
    # Alice Bob Carol David
    # dogs cats moose goose
    def printRowTable(tableData,flag):
    
        colWidths = [0] * len(tableData)
        for i in range(len(tableData)):
            colWidths[i] = maxlen(tableData[i])
        num = max(colWidths)
    
        for i in range(len(tableData)):
            for j in range(len(tableData[i])):
                if flag == 'left' :
                    print(tableData[i][j].ljust(num + 4), end="")
                elif flag == 'right':
                    print(tableData[i][j].rjust(num + 4), end="")
                else:
                    print(tableData[i][j].center(num + 4), end="")
            print()
    
    # 二位列表将列表以列格式化打印
    # apples Alice dog
    # oranges Bob cats
    # cherries Carol moose
    # banana David goose
    def printColumnTable(tableData,flag):
    
        colWidths = [0] * len(tableData)
        for i in range(len(tableData)):
            colWidths[i] = maxlen(tableData[i])
        num = max(colWidths)
    
        for j in range(len(tableData[0])):
            for i in range(len(tableData)):
                if flag == 'left' :
                    print(tableData[i][j].ljust(num + 4), end="")
                elif flag == 'right':
                    print(tableData[i][j].rjust(num + 4), end="")
                else:
                    print(tableData[i][j].center(num + 4), end="")
            print()
    
    tableData = [['apples', 'oranges', 'cherries', 'banana'],
                 ['Alice', 'Bob', 'Carol', 'David'],
                 ['dogs', 'cats', 'moose', 'goose']]
    
    print("======================Row===========================")
    printRowTable(tableData,'right')
    print("====================================================")
    printRowTable(tableData,'left')
    print("====================================================")
    printRowTable(tableData,'center')
    print("======================Column========================")
    printColumnTable(tableData,'right')
    print("====================================================")
    printColumnTable(tableData,'left')
    print("====================================================")
    printColumnTable(tableData,'center')

运行结果:

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