python十六进制编辑器

源代码：

import tkinter as tk
from tkinter import filedialog
import struct
import binascii
import os

class HexEditor:
    def __init__(self, master):
        self.master = master
        self.master.title("十六进制编辑器")
        self.master.configure(bg='black')
        self.master.geometry("800x450+200+200")

        self.scrollbar = tk.Scrollbar(master)
        self.scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

        self.text_area = tk.Text(master, width=80, height=30, bg='black', fg='white', yscrollcommand=self.scrollbar.set)
        self.text_area.pack(expand=True, fill=tk.BOTH)

        self.scrollbar.config(command=self.text_area.yview)

        self.open_button = tk.Button(master, text="打开文件", command=self.open_file, bg='gray', fg='white')
        self.open_button.pack()

        self.save_but