Question

我目前正在处理CSV文件，而且我的代码已经碰壁了。我试图达到的目标是能够写出一个包含20行和10列的CSV文件，1包含随机名称，8包含随机整数，最后一个包含随机字母等级（I＆＃39; ve）能够成功完成此步骤）。然后读取文件，对每行的整数（生成的所有随机整数）求和，找出所有8个分数（整数）的平均值，并根据平均值打印最终的字母等级，并将它们放在最后一个，空的，列和每行的结尾。我目前无法找到这样做的方法，是否有任何可用于此目的的命令或任何有用的提示或提示？就目前而言，这已经达到了这一点。

import random
import csv
fname = ['Red','Jose','Mikasa','Sakura','Naruto','Momoka','Zero','Ryu','Ken','Geralt','Greg','Mika','Momo','Xenovia','John','Gary','Lance','Eren','Duke','Claire']
lname = ['Akerman','Haruno','Johnson','Rivia','Valentine','Redfield','Kennedy','Juarez','Jameson','Williams','Miller','Davis','Thompson','Garcia','Remington','Hayabusa','Strife','Armstrong','Kojima','Chambers']

def ranint():
    value = random.randint(60, 100)
    return value
def ranname():
    first = random.choice(fname)
    last = random.choice(lname)
    fname.remove(first)
    lname.remove(last)
    return ("; ".join([first, last]))

with open('grades2.csv','w',newline='') as fp:
    a = csv.writer(fp,delimiter=',')
    data = [['Name', 'If Else', 'Loops', 'Functions', 'File IO', 'Conditionals', 'Repetition', 'Python Functions', 'Input Output', 'Grade'],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ],
        [ranname(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ranint(), ]]
    a.writerows(data)
    fp.close()
with open('grades2.csv', 'r', newline='') as fh:
    z = csv.reader(fh)

Answer 1

继续代码的最后一部分，您可以尝试：

with open('grades2.csv', 'r', newline='') as fh:
    z = csv.reader(fh)
    next(z) #skip header
    for row in z:
        #slice the integer columns and convert to int
        integers=[int(i) for i in row[1:9] ]
        #find average   
        avg_integers=sum(integers)/len(integers)
        print(avg_integers)

Answer 2

您可以使用pandas -

import pandas as pd

df = pd.read_csv('grades2.csv')
df['Total'] = df.sum(numeric_only=True, axis=1)
df['Mean'] = df['Total']/8

读取CSV文件并与行末尾给定行中的所有整数生成和

2 个答案: