用py制作一个答题系统具备上下题，记录错题，已完成题目，保存radiobutton答案选项等功能的代码

好的，以下是一个简单的代码示例，实现了上述功能：

import csv
import tkinter as tk
from tkinter import ttk

class QuizApp:
    def __init__(self, quiz_file):
        self.quiz_data = []
        with open(quiz_file, 'r') as f:
            reader = csv.reader(f)
            for row in reader:
                self.quiz_data.append(row)
        self.current_index = 0
        self.answers = {}
        self.wrong_answers = []
        self.create_gui()

    def create_gui(self):
        self.root = tk.Tk()
        self.root.title('Quiz App')
        self.question_label = ttk.Label(self.root, text='')
        self.question_label.pack(padx=20, pady=10)

        self.radio_vars = []
        self.radio_buttons = []
        for i in range(4):
            var = tk.StringVar()
            self.radio_vars.append(var)
            rb = ttk.Radiobutton(self.root, text='', variable=var, value=str(i))
            rb.pack(padx=20, pady=5)
            self.radio_buttons.append(rb)

        self.prev_button = ttk.Button(self.root, text='Prev', command=self.show_prev_question)
        self.prev_button.pack(side='left', padx=20, pady=10)
        self.next_button = ttk.Button(self.root, text='Next', command=self.show_next_question)
        self.next_button.pack(side='left', padx=20, pady=10)
        self.submit_button = ttk.Button(self.root, text='Submit', command=self.submit_answers)
        self.submit_button.pack(side='left', padx=20, pady=10)

        self.status_canvas = tk.Canvas(self.root, width=400, height=20)
        self.status_canvas.pack(padx=20, pady=10)

        self.show_question()

    def show_question(self):
        question = self.quiz_data[self.current_index][0]
        self.question_label.configure(text=question)
        for i in range(4):
            answer = self.quiz_data[self.current_index][i+1]
            self.radio_buttons[i].configure(text=answer)
            self.radio_vars[i].set('')

    def show_prev_question(self):
        if self.current_index > 0:
            self.current_index -= 1
            self.show_question()

    def show_next_question(self):
        if self.current_index < len(self.quiz_data) - 1:
            self.current_index += 1
            self.show_question()

    def submit_answers(self):
        for i in range(4):
            if self.radio_vars[i].get() == '0':
                self.answers[self.current_index] = i
                if self.quiz_data[self.current_index][-1] != 'A':
                    self.wrong_answers.append(self.current_index)
                break
        self.show_question()
        self.update_status()

    def update_status(self):
        self.status_canvas.delete('all')
        self.status_canvas.create_text(10, 10, text=f'Question: {self.current_index+1}/{len(self.quiz_data)}')
        self.status_canvas.create_text(200, 10, text=f'Correct: {len(self.answers)}')
        self.status_canvas.create_text(390, 10, text=f'Wrong: {len(self.wrong_answers)}')

    def run(self):
        self.root.mainloop()

    def save_answers(self, output_file):
        with open(output_file, 'w', newline='') as f:
            writer = csv.writer(f)
            for index, answer in self.answers.items():
                writer.writerow([index, self.quiz_data[index][-1], self.radio_buttons[answer].cget('text')])

if __name__ == '__main__':
    quiz = QuizApp('quiz.csv')
    quiz.run()
    quiz.save_answers('answers.csv')

其中，`quiz.csv`是题目数据文件，格式如下：

下列哪个不是Python的基本数据类型？,A.int,B.float,C.str,D.list,A
Python中用什么关键字定义一个函数？,A.def,B.function,C.fun,D.method,A

在`__init__`方法中，读取题目数据，并初始化一些变量。在`create_gui`方法中，创建界面并显示第一题。在`show_question`方法中，根据当前题目的索引，更新界面上的题目和答案选项。在`show_prev_question`和`show_next_question`方法中，用于切换上下题。在`submit_answers`方法中，保存用户的答案，并更新界面上的题目和答案选项。在`update_status`方法中，更新答题统计信息。在`run`方法中，启动界面，并在界面关闭后保存用户的答案到文件中。