python的tkinter

Question

#python的tkinter里的Button放到LabelFrame创建时就返回为None，放到root就可以
#

import tkinter as tk
def change_text():
    button.config(text="新文字")
root = tk.Tk()
root.title("改变按钮文字示例")
labelframe = tk.LabelFrame(width=400, height=200, text="配置")
labelframe.grid(column=0, row=0, padx=10, pady=10)
pojie = tk.Button(labelframe, text="开始破解", command=change_text).grid(column=1, row=0)
if (pojie == None):
    print("NULL")

# button = tk.Button(root, text="原始文字", command=change_text)
# if(button == None):
#     print("None")
# button.pack(pady=20)
root.mainloop()

Answer 1

不能加.grid(column=1, row=0)