从类的实例中获取值-解网

问：

    class Jokes:
    def __init__(self, *joke):
        self.joke_list = []
        self.used_joke_list = []
        self.joke = joke
        if self.joke not in self.joke_list and self.joke not in self.used_joke_list:
            self.add_Joke(joke)

    def __str__(self):
        return "{} \n {}".format(self.joke.split("...")[0], self.joke.split("...")[1])

    def show_Joke(self):
        if len(self.joke_list) > 0:
            randjoke = rand.randint(0,len(self.joke_list) - 1)
            self.cur_joke = self.joke_list[randjoke]
            self.used_joke_list.append(self.cur_joke)
            self.joke_list.remove(self.cur_joke)
            return str(self.cur_joke)

        elif len(self.joke_list) == 0:
            for joke in self.used_joke_list:
                self.joke_list.append(joke)
                self.used_joke_list.remove(joke)
                self.show_Joke()
    def add_Joke(self, joke):
        #joke = input("What's you joke? /n")
        self.joke_list.append(joke)

joke1 = Jokes("Which bear is the most condescending? A pan-duh!")
joke2 = Jokes("We're afraid for this calendar... It's days are numbered")
joke3 = Jokes("6:30 is the best time on a clock... Hands down")
joke4 = Jokes("A detective was rushed to the ER... He accidentally poked his private eye")
joke5 = Jokes("A friend of mine collects blunt pencils... Personally, I find his hobby a bit pointless")
print(Jokes.show_Joke)

我正在尝试创建一个程序来显示一个随机的坏爸爸笑话，允许用户添加新笑话，并显示一个随机笑话

我正在使用列表来存储新的和使用过的笑话以防止重复，在此示例中，我添加了一些笑话。不过，每当我尝试将节目称为笑话方法时，我得到的只是0x000002478B02A0E0><功能Jokes.show_Joke。如果我在行末尾添加（print（Jokes.show_joke（）），我会收到有关参数的错误。我不想调用类的特定实例，我希望它是随机的。

我如何让它返回笑话，以便我可以在标签上显示它？（也使用 tkinter 作为 gui，但该部分正常）

Python 类方法返回

import random

class Jokes:
    def __init__(self, *jokes):
        self.new_jokes = []
        self.used_jokes = set()
        self.add_jokes(*jokes)

    def add_jokes(self, *jokes):
        self.new_jokes.extend(jokes)
        random.shuffle(self.new_jokes)

    def __str__(self):
        return " ... ".join(self.new_jokes)

    def show_joke(self):
        if not self.new_jokes:
            # recycle all the old jokes
            self.new_jokes = list(self.used_jokes)
            random.shuffle(self.new_jokes)
            self.used_jokes.clear()

        joke = self.new_jokes.pop()
        self.used_jokes.add(joke)
        return joke

jokes = Jokes(
    "Which bear is the most condescending? A pan-duh!",
    "We're afraid for this calendar... It's days are numbered",
    "6:30 is the best time on a clock... Hands down",
    "A detective was rushed to the ER... He accidentally poked his private eye",
    "A friend of mine collects blunt pencils... Personally, I find his hobby a bit pointless",
)
print(jokes.show_joke())

请注意，这是一个实例方法（它作为参数，因为它知道在哪里找到和），因此您可以在实例上调用它，而不是在类上调用它。show_jokeselfself.new_jokesself.used_jokesjokesJokes

我对课程完全感到困惑，哈哈，感谢您对情况的反馈。我试图制作一个笑话对象，其中包含您提到的所有笑话。我会试一试，再次感谢你！我注意到您更改了一些内容，例如 self.used_jokes = set（）为什么要这样做而不是创建另一个空字符串？而且，如果我们随机化new_jokes列表中出现的笑话，这仍然有效吗？

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从类的实例中获取值

Get a value from instance of a class

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