Tkinter保存文件并重新打开文件

import tkinter as tk
from tkinter import filedialog

def save_file():
    file_path = filedialog.asksaveasfilename(defaultextension=".txt")
    if file_path:
        with open(file_path, "w") as file:
            file.write(text.get("1.0", "end-1c"))

def open_file():
    file_path = filedialog.askopenfilename(filetypes=[("Text Files", "*.txt")])
    if file_path:
        with open(file_path, "r") as file:
            content = file.read()
            text.delete("1.0", "end")
            text.insert("1.0", content)

root = tk.Tk()

text = tk.Text(root)
text.pack()

save_button = tk.Button(root, text="Save", command=save_file)
save_button.pack()

open_button = tk.Button(root, text="Open", command=open_file)
open_button.pack()

root.mainloop()