Question

我是一名中学教师，他试图找到一种合适的方法来教授KS4学生的技巧，这些技术可以让他们将数据写入CSV文件，然后从文件中读取相同的数据，并以有组织的结构将其显示回Python 。学生和我清楚地了解如何将数据写入文件，但是从文件中获取数据到Python然后对其进行排序变得相当棘手和复杂。

我创建了一个程序，允许用户输入他们的名字，然后输入3个单独的数字，所有这些数字都会以下面显示的格式写入CSV文件...

James , 3 , 7 , 4
David , 5 , 5 , 9
Steven , 8 , 3 , 9

这些结果保存在文件“7G1.csv”

中

到目前为止，我有一个正常运行的程序，按字母顺序排序，从最高到最低，平均从最高到最低。我已经能够通过研究和拼接来自以下计划的众多来源的技术，但是任何人都可以提出一种更容易更有效的方法，可以被16岁的人理解。

import csv

G1 = open('7G1.csv')
csv_G1 = csv.reader(G1)
list7G1 = []
for column in csv_G1:
    column[1] = int(column[1])
    column[2] = int(column[2])
    column[3] = int(column[3]) 
    minimum = min(column[1:4])
    column.append(minimum)
    maximum = max(column[1:4])
    column.append(maximum)
    average = round(sum(column[1:4])/3)
    column.append(average)
    list7G1.append(column[0:7])

group_menu = 0
while group_menu != 4:
    group_menu = int(input("Which group / class do you want to look at?\n1.7G1?\n2.7G2?\n3.7G3?\n4.Quit? "))                     
    if group_menu == 1:
        print ("You have chosen to focus on group 7G1.")
        menu = int(input("\nDo you want to...\n1.Sort Alphabetically?\n2.Sort Highest to Lowest?\n3.Sort Average Highest to Lowest?\n4.Exit Group? "))
        while menu != 4:
            if menu == 1:
                print("You have chosen to Sort Alphabetically...")
                namesList = [[x[0], x[5]] for x in list7G1]
                print("\nSorted Alphabetically with Highest Scores \n")
                for names in sorted(namesList):
                    print (names)
            elif menu == 2:
                print("You have chosen to Sort Highest to Lowest...")
                highestScore = [[x[5], x[0]] for x in list7G1]
                print("\nScores Highest to Lowest \n")
                for hightolow in sorted(highestScore, reverse = True):
                    print (hightolow)
            elif menu == 3:
                print("You have chosen to Sort Average Highest to Lowest")
                averageScore = [[x[6], x[0]] for x in list7G1]
                print("\nAverage Scores \n")
                for average in sorted(averageScore, reverse = True):
                    print(average)
            elif menu == 4:
                print("You have chosen to exit this group")
            else:
                print("This is not a valid option")
            menu = int(input("\nDo you want to...\n1.Sort Alphabetically?\n2.Sort Highest to Lowest?\n3.Sort Average Highest to Lowest?\n4.Exit Group? "))

对于如何简化此计划的任何建议都将非常感激。

在Python中从CSV文件中排序多个列

0 个答案: