尝试将外部分数文件添加到Python猜测游戏

Question

我正在为学校制作一个Python猜谜游戏。 游戏本身运行良好，但我需要添加一个外部分数文件（.txt） 我尝试了很多不同的方法来实现这一点，但我遇到的问题是； 如果文件中存在用户名，如何更新该用户名的分数线

最后一个方法（在代码中）只是一个测试，如果找不到新用户名，则将其添加到文件中。这似乎覆盖了文件，没有添加新的用户名

# Import random library
import random
import os

# Welcome User to the game
print("Welcome to the game")

# Collect user details
userName = input("Please enter your Name: ")

# Roll the die for the number of guesses
print("Rolling the Dice!")
diceRoll = random.randint(1,6)
print("You have %d Guesses: " %diceRoll)

# Random picks the number to guess
number = random.randint(1,99)

guesses = 0
win = 0
lose = 0

# Loop checks the users input against the randint and supplies a hint, or breaks if correct
while guesses < diceRoll:
    guess = int(input("Enter a number from 0 to 99: "))
    guesses += 1
    print("This is guess %d " %guesses)

    if guess > 100:
        print("Number out of range. Lose a turn")

    if guess < number:
        print("You guessed to low")

    elif guess > number:
        print("you guessed to high")

    elif guess == number:
        guesses = str(guesses)
        print("You Win! you guessed the right number in",guesses + " turns")
        win = +1
        break

# If the user cannot guess the number in time, they receive a message    
if guess !=number:
    number = str(number)
    print("You Lose. The number was: ",number)
    lose = +1

with open('scoreList.txt', 'r') as scoreRead:
    with open('scoreList.txt', 'w') as scoreWrite:
        data = scoreRead.readlines()
    for line in data:
        if userName not in line:
            scoreWrite.write(userName + "\n")
    scoreRead.close()
    scoreWrite.close()

分数文件的格式是什么并不重要，只要我可以在游戏开始时输入现有分数的名称时编辑它们。如果新用户不存在，请添加新用户。然后在每场比赛结束时打印分数

我完全不知所措

Answer 1

你在最后一个街区有多处失误。您可以打开scoreList.txt，但在with .. as块之外执行写操作。在此块之外，文件将关闭。另外，由于您使用的是with .. as，因此最终不必手动关闭文件

然后，您迭代所有行，并为不包含它的每一行编写名称，可能会重复很多次。然后用'w'打开文件，告诉它覆盖。如果要追加，请使用'a'

试着这样做：

with open('scoreList.txt', 'r') as scoreRead:
    data = scoreRead.readlines()
with open('scoreList.txt', 'a') as scoreWrite:
    if userName + "\n" not in data:
        scoreWrite.write(userName + "\n")

另外请注意，您当前正在将每个名字写入得分列表，而不仅仅是那些赢得比赛的名字