Python 中的测验 - 原始程序已运行，但已重构且现在无法运行

Question

Python 中的简单测验，它以“answer,question”格式读取 csv 文件。在我决定尝试重构我的原始代码之前，该程序正在运行。我参考了不同的来源来确定 csv、random、classes 和 loop 是否正确编码，但代码不能使用这个更新的重构版本运行。原始代码player_name = input("What is your name? ")print(f"Welcome, {player_name}, to Quiz!")play_quiz = str(input("Are you ready to play?\n"))if play_quiz != "y":    exit()class Question:    def __init__(self, prompt, answer):        self.prompt = prompt        self.answer = answer# sample quiz questions go here where ["Question", "Answer choices from a-c"]question_prompts = []questions = [        Question(question_prompts[0], "b"),        Question(question_prompts[1], "a"),    ]def run_test(questions):    score = 0    for question in questions:        answer = input(question.prompt)        if answer == question.answer:            score += 1        print("You answered " + str(score) + "/" + str(len(questions)) + " correct.")    return input("Want to play again? (y/n): ") == "y".lower()play_again = Truewhile play_again:    play_again = run_test(questions)重构代码import csvimport random player_name = input("What is your name? ")print(f"Welcome, {player_name}, to the Quiz!")play_quiz = str(input("Are you ready to play? "))if play_quiz != "y":    exit()class Question:    def __init__(self, prompt, answer):        self.prompt = prompt        self.answer = answerdef quiz():    score = 0    questions_right = 0    quiz_file = open(characters_file, "r")    quiz_data = quiz_file.readlines()    random.shuffle(quiz_data)    question_number = 1     for question in range(65):         x = quiz_data[question].strip()         data = x.split(",")         Question = data.prompt[1]         correct_answer = data.answer[1]def run_test(quiz_data):    answer = input("What is your answer? ")    if answer == correct_answer:         score += 1         question_right = question_number + 1    else:         print("Incorrect.")         print(f"Correct answer should be: {CorrectAnswer}")我不明白我做错了什么，因为它没有使用下面的重构代码运行。本质上，我做错了什么？我是否将代码放在错误的位置以使其无法运行？

Answer 1

我认为您错误地使用了Question您制作的课程。你试图做Question = data.prompt[1]这并没有真正意义。Question 是一个类，因此您将使用它来创建对象的实例。此外，您的班级期望值prompt并answer传递给它。按照您现在的设置方式，您可以按照new_question = Question("What color is the sky?", "blue"). 但是，我认为在此代码中创建类没有多大用处，因为您没有附加任何方法......

下面是一个测验类思想的例子，可以帮助你掌握 OOP 编程的概念：

import random

questions = [

    "What color is the sky?",

    "What year is it?"

]

answers = [

    "blue",

    "2019"

]

class Question:

    def __init__(self):

        index = random.randint(0, len(questions) - 1)

        self.answer = answers[index]

        self.question = questions[index]

    def check_valid(self, guess):

        if guess == self.answer:

            return True

        else:

            return False

if __name__ == "__main__":

    name = str(input("What's your name?\n"))

    print('Welcome then {} welcome to the quiz!'.format(name))

    while True:

        new_question = Question()

        check = False

        while check is not True:

            print(new_question.question)

            user_guess = str(input('What do you think the answer is?\n'))

            check = new_question.check_valid(user_guess)  

您可以看到，在该__init__(self):部分中，代码并未真正进行任何主要计算，而只是设置了以后可以调用的内容，例如new_question.question. 但是，您可以连接方法，像类check_valid（由压痕连接到类def），再后来就用在这些方法的实例创建类的。我的代码中没有很多函数（例如退出循环的能力），但希望这能帮助您更深入地理解 OOP！