更改Python中Tkinter Button的命令方法

import tkinter as tk

def new_command():
    print("新命令已执行")

def change_command():
    my_button.config(command=new_command)

app = tk.Tk()

my_button = tk.Button(app, text="点击我", command=lambda: print("原始命令已执行"))
my_button.pack()

change_button = tk.Button(app, text="更改命令", command=change_command)
change_button.pack()

app.mainloop()

import tkinter as tk

def new_command():
    print("新命令已执行")

def change_command():
    my_button.config(command=new_command)

app = tk.Tk()

my_button = tk.Button(app, text="点击我", command=lambda: print("原始命令已执行"))
my_button.pack()

change_button = tk.Button(app, text="更改命令", command=lambda: my_button.config(command=new_command))
change_button.pack()

app.mainloop()