Question

我在写入CSV文件时遇到问题。此代码有什么问题？

f = open("test.csv", 'w', encoding='utf-8')
with open("sprawdzamy.txt", "r", encoding="utf-8") as plik:
    text = plik.read()
tester=text.split("\n")

with open("testdata_hr.csv", "r", encoding="utf-8") as plik:
    x = 0
    for line in plik:
        someList=line.split(",")

        if x == 0:
             x+=1
             continue
        for element in tester:
            if element in line:
                for s in someList:
                    f.write(s +"\t")
                f.write("Good" +'\n')

所以我想获取像这样的文件：

    1  2  3  4  5  Good
    2  4  5  2  1  Good

但是我得到了这样的东西：

    1  2  3  4  5  
      Good
    2  4  5  2  1 
      Good

Answer 1

可能想考虑一次写入而不是连续写入。像这样：

write_string = ""
for s in someList:
    write_string += f"{s}\t"
f.write(f"{write_string} Good \n")

我觉得应该有一个比这更优雅的解决方案，但是应该可以解决问题。

Answer 2

这里很少有人担心

CSV文件表示其文件包含逗号分隔的值

1,2,3,4,5,Good
2,4,5,2,1,Good

请使用python csv模块编写csv文件。

import csv

with open('employee_file.csv', mode='w') as employee_file:
    employee_writer = csv.writer(employee_file, delimiter=',', quotechar='"', quoting=csv.QUOTE_MINIMAL)

    employee_writer.writerow(['John Smith', 'Accounting', 'November'])
    employee_writer.writerow(['Erica Meyers', 'IT', 'March'])

输出文件看起来像

John Smith,Accounting,November
Erica Meyers,IT,March

更多信息，请访问https://realpython.com/python-csv/

Answer 3

您的行似乎包含new line个字符，因此要删除该字符，请使用rstrip

f = open("test.csv", 'w', encoding='utf-8')
with open("sprawdzamy.txt", "r", encoding="utf-8") as plik:
    text = plik.read()
tester=text.split("\n")

with open("testdata_hr.csv", "r", encoding="utf-8") as plik:
    x = 0
    for line in plik:
        someList=line.split(",")

        if x == 0:
             x+=1
             continue
        for element in tester:
            if element in line:
                for s in someList:
                    f.write(s.rstrip('\n\r') +"\t")
                f.write("Good" +'\n')

在同一行中以python格式写入csv文件

3 个答案: