python - 如何为复选按钮赋值并使用它们来计算分数？

Question

我正在 Tkinter 中编写多项选择测验，并为我的一些问题使用了复选按钮，用户可以在这些问题中选择“所有正确答案”。我已经创建了变量来存储复选按钮的值(开/关值 - 1/0)。但是，计算机似乎不理解变量的值，因此在“计算分数”if 语句中，计算机无法进行比较，因为它无法识别复选按钮的值。

class Question_5_Window(tk.Toplevel):
    '''A simple instruction window'''
    def __init__(self, parent):
        tk.Toplevel.__init__(self, parent)
        self.text = tk.Label(self, width=100, height=4, text = "5) What would you do if you were walking to class and you saw a first year crying? Tick all correct answers.")
        self.text.pack(side="top", fill="both", expand=True)

        question_5_Var1 = IntVar()
        question_5_Var2 = IntVar()
        question_5_Var3 = IntVar()

        A_5 = Checkbutton(self, text = "Keep walking", variable = question_5_Var1, onvalue = 1, offvalue = 0, height=5, width = 20)
        A_5.pack()

        B_5 = Checkbutton(self, text = "Take them to guidance", variable = question_5_Var2, onvalue = 1, offvalue = 0, height=5, width = 20)
        B_5.pack()

        C_5 = Checkbutton(self, text = "Talk to them to resolve issue", variable = question_5_Var3, onvalue = 1, offvalue = 0, height=5, width = 20)
        C_5.pack()

        def calculate_score():

            if (question_5_Var2 == True) and (question_5_Var3 == True):
                print("calculate score has worked")
            else:
                print("not worked")

        Enter_5 = Button(self, text= "Enter", width=10, command = calculate_score)
        Enter_5.pack()

    def flash(self):
        '''make the window visible, and make it flash temporarily'''

        # make sure the window is visible, in case it got hidden
        self.lift()
        self.deiconify()

        # blink the colors
        self.after(100, lambda: self.text.configure(bg="black", fg="white"))
        self.after(500, lambda: self.text.configure(bg="white", fg="black"))

Answer 1

您的question_5_VarX 变量属于IntVar 类型，因此它们在任何情况下都不会是True。您应该使用 get() 方法检查它们的 value。请注意，该值将是 int，但您可以像使用 bool 值一样使用它。

if question_5_Var2.get() and question_5_Var3.get() and not question_5_Var1.get():

(您可能还想检查第一个答案是否未检查。)