pythonTkinter，代码运行时怎么才能点击按钮Button时刷新Label里面的数据

Question

代码运行时，如何点击按钮Button,刷新Label里面数据

Answer 1

import tkinter as tk


def change():
    lab["text"]="你看我哪点像从前"

root = tk.Tk()

but = tk.Button(root,text="点我",command=change)
but.pack()

lab = tk.Label(root,text="我要变形了")

lab.pack()