使用tkinter从另一个函数中更新按钮

import tkinter as tk

root = tk.Tk()

button_text = tk.StringVar()

button = tk.Button(root, textvariable=button_text)
button.pack()

def update_button_text():
    button_text.set("新的按钮文本")

def trigger_update():
    update_button_text()

update_button = tk.Button(root, text="更新按钮文本", command=trigger_update)
update_button.pack()

root.mainloop()