Question

我只是编程的初学者，最近我做了一个简单的调查：

    survey = {}
    polling_active = True


    while polling_active:
        name = input("To take part in the survey, enter your name: ")
        anwser = input("What's your favourite computer game?  ")
        survey[name] = anwser
        repeat = input("Is there enyone else who wants to participate in the 
     survey? (yes/no):  ")

        if repeat.lower() =="no":
            polling_active = False
    number_of_users = len(servey.keys())
    print(str(liczba_uzytkownikow) + " took part in the survey!")       
    print("----------Survey results----------")
    for name, anwser in survey.items():
        print("\nName: " + imie)
print("\nFavourite game: " + anwser)

这并不是很复杂，但是我想做一件事。我想添加一个功能或类似的功能来检查是否重复任何答案。我该怎么办？我应该使用该功能还是什么？我希望它： 1.计算我得到了多少个答案 2.也许创建一个字典，其中包含一个答案以及该答案在答案列表中的次数 3.计算答案在字典中出现的次数。

我还发现我曾经写过“ anwser”而不是“ answer”。...

Answer 1

您可以使用from collections import Counter print([a for a, n in Counter(survey.values()).items() if n > 1])查找不止一个数的答案：

[sudo] npm cache clean -f
[sudo] npm install -g n stable

Answer 2

一种方法可以告诉您哪些答案已被多次回答：

seen_answers = set()
multiples = set()
for answer in list(survey.values()):
    if answer not in seen_answers:
        seen_answers.add(answer)
    else:
        multiples.add(answer)
 # multiples contains the answers that have been said more than once

如果您只想查找已被多次回答的答案，则可以：

answers = list(survey.values())
len(set(answers)) - len(answers)

统计调查结果

2 个答案: