在wait_variable()之后，文本不会改变

Question

我正在做一个问答游戏，在我想通过一个页面并加载新问题和选项之后，选项不会改变。我正在使用 wait_variable() 方法并传递一个字符串，然后只会出现新问题。选项保持不变，不会更改为新选项。如果问题出在索引或 wait_variable 我无法解决。

from tkinter import *

def sumbit():
        name = entry_name.get()
        print(name)

def instructions_Window():
        instructions_Window = Toplevel()
        instructions_Window.title("instructions")

        instructions = Label(
                instructions_Window,
                text = "WELCOME TO THE TRIVIA GAME!\nYour will answer 10 question, the questions will be about general knowledge.\nMake sure you are doing your best maybe you will on the leaderboard soon!\n GOOD LUCK!!!",
                font = ("Staatliches",30))
        instructions.pack()

        back_but = Button(instructions_Window, text="Back", command=instructions_Window.destroy)
        back_but.pack()

def trivia_Window():
        def m():
            print(x.get())

        def clear():
            WaitState.set(1)
            for widgets in trivia_Window.winfo_children():
                widgets.destroy()

        trivia_Window = Toplevel()
        trivia_Window.title("Q&A")

        WaitState = StringVar()
        x = StringVar()

        for key in questions:
            question_number = 1
            question_label = Label(trivia_Window, text=key, font=("Arial",40))
            question_label.pack()

            continue_but = Button(trivia_Window, text="Continue", font=("Arial", 10), padx=20, pady=10, command=clear)
            continue_but.pack(anchor=S)

            for i in options[question_number-1]:
                options_radio = Radiobutton(trivia_Window, text=i, variable=x, value=i, font=("Arial", 20), command=m)
                options_radio.pack()
                question_number = question_number + 1

            continue_but.wait_variable(WaitState)

questions = {
    "How old is the universe?": "C",
    "Who was the first person in space?": "C",
    "In which year the first covid-19 case was discovered?": "C",
    "What is the most populated country?": "A"
}

options = [[["A. 5.3 billion years old"], ["B. 13.8 billion years old"], ["C. 13.8 milion years old"], ["D. 241.1 billion years old"]],
           [["A. Alan Shepard"], ["B. Neil Armstrong"], ["C. Yuri Alekseyevich Gagarin"], ["D. Ilan Ramon"]],
           [["A. 2018"], ["B. 2001"], ["C. 2019"], ["D.2020"]],
           [["A. China"],["B. Russia"], ["C. India"], ["D. United States"]]]

window = Tk()
window.title("Home")
window.geometry("1920x1080")
window.iconbitmap("pp.ico")
window.config(bg="#93b4ba")

label_welcome = Label(window, text="Welcome Back To Our Trivia Game!", font=("Akaya Kanadaka",80,"bold"), bg = "#93b4ba")
label_welcome.pack()

label_enter_name = Label(window, text="Enter you name:", font=("Lato",50,"bold"), bg = "#93b4ba", fg="#3038d1")
label_enter_name.pack(side=LEFT)

entry_name = Entry(window,font=("Arial",40))
entry_name.pack(side=LEFT)

sumbit_but = Button(window, text="Sumbit", font=("Arial",10,"bold"), width=15, height=4,command=sumbit, bg="#0f0f0f", fg="white")
sumbit_but.pack(side=LEFT)

quit_but = Button(window, text="Quit", font=("Arial",10,"bold"), width=20, height=10,command=quit,bg="#b5aa72")
quit_but.place(x=0,y=845)

start_but = Button(window, text="Start", font=("Arial",10,"bold"), width=20, height=10,command=trivia_Window ,bg="#a1ad90")
start_but.place(x=1750,y=845)

instructions_but = Button(window, text="Instructions", font=("Arial",10,"bold"), width=20, height=10,command=instructions_Window,bg="#626363")
instructions_but.pack(side=RIGHT)

window.mainloop()

Answer 1

这是因为你在 for key in questions 循环的每次迭代中将 question_number 重置为 1。

下面是用于解决问题的修改后的 for 循环：

# use enumerate() to set question_number
for question_number, key in enumerate(questions):
        question_label = Label(trivia_Window, text=key, font=("Arial",40))
        question_label.pack()

        continue_but = Button(trivia_Window, text="Continue", font=("Arial", 10), padx=20, pady=10, command=clear)
        continue_but.pack(anchor=S)

        x.set(' ') # reset selection of radiobuttons
        for i in options[question_number]:
                options_radio = Radiobutton(trivia_Window, text=i, variable=x, value=i, font=("Arial", 20), command=m)
                options_radio.pack()

        continue_but.wait_variable(WaitState)

在wait_variable()之后，文本不会改变

After wait_variable(), text won't change

python

label

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radio-button