如何显示GUI消息，指示在Python的tkinter中已选择了哪个检查按钮和单选按钮？

Question

我是Python和一般编程的超级新手。 我在tkinter上四处tkinter试图制作一个愚蠢而简单的程序，以便让我对它更加满意。

我对程序所做的工作是询问用户的姓名，年龄，他们是否记得某些事件以及是否感到年纪大。 就像我说的那样，仅仅为了测试我的技能就应该是一个轻松的程序。

现在，我想知道如何显示GUI消息，指示在Python的tkinter中已选择了哪个检查按钮和单选按钮？

这是代码和屏幕截图。 我将包括结果的屏幕截图，但是我可以使用名称和年龄来正常工作，但是无法使用复选框或单选按钮使消息正确显示在GUI中。

from tkinter import *

class MyFrame(Frame):
    def __init__(self):
        Frame.__init__(self)
        self.master.geometry("600x400")
        self.master.title("How to tell if you're old")
        self.event = NONE
        self.old = NONE
        self.grid()

    #user name and age
        self.prompt = Label(self, text="What's your name?")
        self.prompt.grid(row=0, column=0, pady=5)

        self.input_name = Entry(self)
        self.input_name.grid(row=0, column=1, pady=5)

        self.prompt = Label(self, text="How old are you?")
        self.prompt.grid(row=2, column=0, pady=5)

        self.input_age = Entry(self)
        self.input_age.grid(row=2, column=1, pady=10)

    #user asks user if they remember certain events
        self.prompt = Label(self, text="Which of these events do"
                                   "you remember (may select more than one)?")
        self.prompt.grid(row=3, columnspan=5, pady=5)

        self.wheel_event = IntVar()
        self.check_wheel_event = Checkbutton(self, text="Invention of the wheel",
                                         variable=self.wheel_event, command=self.set_response_event)
        self.check_wheel_event.grid(row=4, column=0, padx=5)

        self.firstFlight_event = IntVar()
        self.check_firstFlight_event = Checkbutton(self, text="First flight",
                                               variable=self.firstFlight_event, command=self.set_response_event)
        self.check_firstFlight_event.grid(row=4, column=1, padx=5)

        self.Berlin_Wall_event = IntVar()
        self.check_Berlin_Wall_event = Checkbutton(self, text="Berlin Wall",
                                               variable=self.Berlin_Wall_event, command=self.set_response_event)
        self.check_Berlin_Wall_event.grid(row=4, column=2, padx=5)

        self.millennium_event = IntVar()
        self.check_millennium_event = Checkbutton(self, text="Millennium",
                                              variable=self.millennium_event, command=self.set_response_event)
        self.check_millennium_event.grid(row=4, column=3, padx=5)

    #user answers if they think they're old and if they want to know how
        # old they'll be in 10, 15, or 20 years
        self.prompt = Label(self, text="Do you consider yourself old?")
        self.prompt.grid(row=5, column=0, pady=5)

        self.feel_old = IntVar()
        self.feel_old.set(4)

        self.not_sure_old = Radiobutton(self, text="Not sure",
                                    variable=self.feel_old, value="0")
        self.not_sure_old.grid(row=6, column=0)

        self.no_old = Radiobutton(self, text="No",
                              variable=self.feel_old, value="1")
        self.no_old.grid(row=6, column=1)

        self.yes_old = Radiobutton(self, text="Yes",
                               variable=self.feel_old, value="2")
        self.yes_old.grid(row=6, column=2)

    #submit button
        self.button_submit = Button(self, text='Submit',
                                command=self.submit_click)
        self.button_submit.grid
        self.button_submit.grid(row=9, column=3, padx=10)

        self.my_name = StringVar()
        self.message = Label(self, textvariable=self.my_name)
        self.message.grid(columnspan=2, pady=10)

        self.my_age = StringVar()
        self.message = Label(self, textvariable=self.my_age)
        self.message.grid(columnspan=2, pady=10)

    #response
    def set_response_event(self):
        #remembering events
        if self.wheel_event.get() == 1:
            self.event = "wheel"
        elif self.firstFlight_event.get() == 1:
            self.event = "firstFlight"
        elif self.Berlin_Wall_event.get() == 1:
            self.event = "Berlin_Wall"
        elif self.millennium_event.get() == 1:
            self.event = "millennium"

    def set_response_old(self):
        #feeling old
        if self.not_sure_old.get() == "0":
            self.old = "not_sure_old"
        elif self.no_old.get() == "1":
            self.old = "no_old"
        elif self.yes_old.get() == "2":
            self.old = "yes_old"

    def submit_click(self):
        output_message = 'Well ' + self.input_name.get() + ', to begin with you are ' + self.input_age.get() + '.\n'
        output_message += 'You remember the ' + self.event +'.\n'
        output_message += 'This means you are ' + self.old + '.'

        self.my_name.set(output_message)

frame05 = MyFrame()
frame05.mainloop()

这是我得到的：

我意识到我可能很难做到这一点，但是我感觉自己真的很接近。 谢谢您的帮助！

Answer 1

首先，您永远不会调用我能告诉的set_response_old(self) 。 其次，您尝试将字符串与整数进行比较，这不会陷入if语句中。 尝试像这样重写最后两个函数：

    def set_response_old(self):
        #feeling old
        if self.feel_old.get() == 0:
            self.old = "not sure old"
        elif self.feel_old.get() == 1:
            self.old = "no old"
        elif self.feel_old.get() == 2:
            self.old = "yes old"

    def submit_click(self):
        self.set_response_old()
        output_message = 'Well ' + self.input_name.get() + ', to begin with you are ' + self.input_age.get() + '.\n'
        output_message += 'You remember the ' + self.event + '.\n'
        output_message += 'This means you are ' + self.old + '.'
        self.my_name.set(output_message)

当我运行它时，输出

这意味着你已经老了。

我想这就是你要的。

@编辑

至于要显示记住的事件的列表...您可以在__init__部分中添加self.events_remembered = []以创建一个存储数据的地方（它不需要放在init部分中，因为下面的代码会使无论如何，但这是一个好习惯！），然后像这样更改set_response函数：

    def set_response_event(self):
    #remembering events
    self.events_remembered = [] # reset each time we are determining pressed events (so we don't just keep adding duplicates, and also remove any unchecked boxes)
    if self.wheel_event.get() == 1:
        self.events_remembered.append("wheel")
    if self.firstFlight_event.get() == 1:
        self.events_remembered.append("firstFlight")
    if self.Berlin_Wall_event.get() == 1:
        self.events_remembered.append("Berlin Wall")
    if self.millennium_event.get() == 1:
        self.events_remembered.append("millennium")

您以为if只会捕获第一个，这是正确的，但是没有规则禁止一系列if语句，如图所示！

最后，您可以更新您的submit_click函数以搜索此信息并显示格式化的列表

def submit_click(self):
    self.set_response_old()
    self.set_response_event() # use the function we just updated
    print(self.events_remembered)
    output_message = 'Well ' + self.input_name.get() + ', to begin with you are ' + self.input_age.get() + '.\n'
    output_message += 'You remember the ' + ", ".join(self.events_remembered) + '.\n'
    output_message += 'This means you are ' + self.old + '.'
    self.my_name.set(output_message)

在这里，我们使用", ".join(iterable_list)将我们的python列表转换为一个漂亮的逗号分隔列表！

如果这解决了您的问题，请单击帖子旁边的复选标记接受答案，我们将不胜感激！ 如果您真的很喜欢我，也可以单击以赞我XD

Answer 2

要将所有复选框值都输出，请将self.event属性设为列表

def __init__self():
    ...
    ...
    self.event=[]

当您调用set_response_event函数时，请将这些字符串值附加到该列表中。

def set_response_event(self):
    #remembering events
    if self.wheel_event.get() == 1:
        self.event.append("wheel")
    elif self.firstFlight_event.get() == 1:
        self.event.append("firstFlight")
    elif self.Berlin_Wall_event.get() == 1:
        self.event.append("Berlin_Wall")
    elif self.millennium_event.get() == 1:
        self.event.append("millennium")

最后使用.join函数打印列表

'You remember the ' + ', '.join(self.event) + '\n'