Question

我一直在研究以下代码，用Python制作一个多选问题程序。我正在寻找一些关于如何提高程序复杂性的建议。

当前程序包含python脚本中的问题和答案集。如何从单独的文件（最好是电子表格或文本文件）中回忆问题和答案？
当前程序随机化所有问题的顺序，并将每个问题的两个错误答案随机化。如何为给定问题分配特定的错误答案，但是随机化了答案的呈现顺序？（例如，如果从电子表格中调用，第1列包含问题，第2列包含正确答案，第3-5列包含错误答案。程序以随机顺序显示所有可能答案后面的问题）

谢谢你和mahalo。

import random
import os

# dictionary containing the information for the questions & answers
word_drills = {'class': 'Tell Python to make a new kind of thing.',
               'object': 'Two meanings: the most basic kind of thing, and any instance of some thing.',
               'instance': 'What you get when you tell Python to create a class.',
               'def': 'How you define a function inside a class.',
               'self': 'Inside the functions in a class, self is a variable for the instance/object being accessed.',
               'inheritance': 'The concept that one class can inherit traits from another class, much like you and your parents.',
               'composition': 'The concept that a class can be composed of other classes as parts, much like how a car has wheels.',
               'attribute': 'A property classes have that are from composition and are usually variables.',
               'is-a': 'A phrase to say that something inherits from another, as in a Salmon *** Fish',
               'has-a': 'A phrase to say that something is composed of other things or has a trait, as in a Salmon *** mouth.'}


# Main portion of the program
def main():
    right_answer_total = 0
    wrong_answer_total = 0
    percentage = 0.0

    while True:
        print_stats(right_answer_total, wrong_answer_total, percentage)

        possible_answers = random.sample(word_drills, 3)
        # User is presented with a question. A value from the previous randomly selected possible_answers is selected as the 'correct_answer'
        correct_answer = random.choice(possible_answers)
        question = word_drills[correct_answer]
        print "Question: ", question
        print "\n\n(a)%s   (b)%s   (c)%s" % tuple(possible_answers)

        selection = raw_input("> ")
        if selection not in ('a', 'b', 'c'):
            print "That is not a valid selection."
            break

        answer = possible_answers[ord(selection) - ord('a')]
        if answer == correct_answer:
            print "That's correct!"
            right_answer_total += 1
        else:
            print "I'm sorry, that is incorrect..."
            wrong_answer_total += 1

        percentage = 100 * right_answer_total / float(right_answer_total + wrong_answer_total)

# Stat tracking
def print_stats(right_answer_total, wrong_answer_total, percentage):
    os.system('cls' if os.name=='nt' else 'clear') 
    print "-" * 37
    print "|         Stat Tracking             |"
    print "-" * 37
    print "| Correct | Incorrect |  Percentage |"
    print "-" * 37
    print "|    %d    |     %d     |     %d %%     |" % (right_answer_total, wrong_answer_total, percentage) 
    print "-" * 37
    print "\n\n\n"

if __name__ == '__main__':
    main()

来源：https://codereview.stackexchange.com/questions/14838/multiple-choice-quiz-with-stat-tracking

第一篇文章。对任何论坛虚假的道歉。我会做得更好。

Answer 1

查看random.choice

示例：

from random import choice

word_drills = {
    'class': 'Tell Python to make a new kind of thing.',
    'object': 'Two meanings: the most basic kind of thing, and any instance of some thing.',
    'instance': 'What you get when you tell Python to create a class.',
    'def': 'How you define a function inside a class.',
    'self': 'Inside the functions in a class, self is a variable for the instance/object being accessed.',
    'inheritance': 'The concept that one class can inherit traits from another class, much like you and your parents.',
    'composition': 'The concept that a class can be composed of other classes as parts, much like how a car has wheels.',
    'attribute': 'A property classes have that are from composition and are usually variables.',
    'is-a': 'A phrase to say that something inherits from another, as in a Salmon *** Fish',
    'has-a': 'A phrase to say that something is composed of other things or has a trait, as in a Salmon *** mouth.'
}

selected = word_drills[choice(word_drills.keys())]

随机选择10个选项中的3个

keys = word_drills.keys()
choices = []

for k in range(3):
    select = choice(keys)
    if not select in choices:
        choices.append(select)

多项选择计划和迭代（2.7）

1 个答案: