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法律研究Python 基本编程挑战
在本教程中，我们将针对一项挑战撰写解决方案。
挑战
我们必须生成一组随机的基本算术运算。用户将提供问题的数量，而我们必须生成问题。每个问题之后，用户都将回答。在程序结束时，我们必须给出一个分数。让我们试一试。
示例
# importing random and operator modules
import random
import operator
# main function
# taking number of questions that we have to generate
def main(n):
print("Welcome to the quiz\nYou should answer floats upto 2 decimals")
# initialising score to 0
score = 0
# loop to generate n questions
for i in range(n):
# getting answer and correctness of a question
is_correct, answer = question(i)
# checking whether is_correct is True or not
if is_correct:
# increment score by 1 if correct
score += 1
print('Correct Congrats!')
else:
# printing the correct answer
print(f'Incorrect! Answer: {answer}')
# displaying the total score
print(f'Total score: {score}')
# function for the question
def question(n):
# getting answer from the generate_function
answer = generate_question()
# taking answer from the user
user_answer = float(input("Answer: "))
# returning answer to the main function
return user_answer == answer, answer
# function to generate a random question
def generate_question():
# initialising operators for random generation
operators = {
'+' : operator.add,
'-' : operator.sub,
'*' : operator.mul,
'/' : operator.truediv,
'//' : operator.floordiv,
'%' : operator.mod
}
# initialising numbers for expressions
nums = [i for i in range(10)]
# getting two random numbers from nums for calculation
_1, _2 = nums[random.randint(0, 9)], nums[random.randint(0, 9)]
# generating random operator from the list of operators
symbol = list(operators.keys())[random.randint(0, 5)]
# calculating the answer
answer = round(operators.get(symbol)(_1, _2), 2)
print(f'{_1} {symbol} {_2}?')
return answer
if __name__ == '__main__':
main(5)输出
如果你运行上面的代码，你将得到以下结果。
Welcome to the quiz You should answer floats upto 2 decimals 5 + 7? Answer: 12 Correct Congrats! 9 / 9? Answer: 1 Correct Congrats! 4 + 7? Answer: 11 Correct Congrats! 6 // 6? Answer: 1.0 Correct Congrats! 9 % 3? Answer: 0 Correct Congrats! Total score: 5
结论
你还可以添加一些其他功能，比如增加难度、生成从简单的到困难的问题等方式来改进问题……自己尝试一下。我希望你享受本教程。如果你有任何疑问，请在评论部分中指出。
更新于： 2019-11-01
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