我正在为我的一个学校项目设计一个登录系统，我已经将代码链接到一个CSV文件，当用户注册时，它会保存他们的用户名和密码。然而，当你试图重新登录时，结果是用户名或密码不正确，但当我说我没有帐户并创建一个帐户时，它就工作了。

import csv
import random

# create a list to store the usernames and passwords of both players
players = []

# loop through each player
for i in range(2):

    # ask if the player has made a username and password before
    newUser = input(f"Player {i+1}, have you made a username and password before?").strip()

    # if the player is new, ask for their name and password and add them to the list
    if newUser == 'no':
        newName = input(f"Player {i+1}, what is your first name?").strip()
        newPassword = input(f"Player {i+1}, what would you like your password to be?").strip()

        players.append([newName, newPassword])

        file = open('ScoreSheet.csv', 'a', newline='')
        writer = csv.writer(file)

        writer.writerow([newName, newPassword])

        file.close()

    # if the player has logged in before, ask for their name and password and check if they match
    elif newUser == 'yes':
        verifyName = input(f"Player {i+1}, what is your name?").strip()
        verifyPassword = input(f"Player {i+1}, what is your password?").strip()

        # loop through each player's login information and check if there is a match
        match_found = False
        for player in players:
            if player == [verifyName, verifyPassword]:
                print(f"Player {i+1}, you are logged in")
                match_found = True
                break

        # if there is no match, inform the player and ask them to try again
        if not match_found:
            print(f"Player {i+1}, wrong username or password. Please try again.")

# print welcome message with the players' names
if len(players) >= 2:
    print(f"Welcome, {players[0][0]} and {players[1][0]}!")
else:
    print("Error: not enough players logged in.")

当我打印CSV文件及其所包含的内容时，会显示以前注册的所有名称：

'finley'  'fin'  '10'
janet janet123 None
james james123 None
charlie charlie123 None
amy amy123 None
fred fred123 None
summer summer123 None
nat nat123 None
nathan nathan123 None
elle elle123 None
charles charles123 None
juno juno123 None
sam sam123 None
samuel samuel123 None
Tom Tom123 None
Thomas Thomas123 None
charlie charlie123 None
grace grace123 None
natalie natalie123 None
Dan Dan123 None
Daniel Daniel123 None

我是新的CSV，所以我用谷歌表创建文件，但后来它得到了在VS代码中打开，只显示2个名称：

finley,fin,10
janet,janet123

格式如下：name，password，score我也使用PyScripter来编写实际的代码