如何删除小部件并在python中替换它们

Question

我是 tkinter 的新手，想将我制作的一段已经存在的代码更改为 GUI。下面的代码是一个用户名和密码系统。我需要帮助的是我无法弄清楚如何获得新盒子或删除 gui 的小部件。下面的代码没有任何问题，但我想向您展示，因为它向您展示了我是如何编码的，以及如何根据此代码制作一个新盒子。 顺便说一句，我在 python 3.5.1 和 Windows 10 上。

import tkinter
from tkinter import *
import tkinter.messagebox as box
import time

def dialog1():
    username=entry1.get()
    password = entry2.get()
    if (username == 'Noel' and  password == 'Music quiz'):
        box.showinfo('info','You may now enter the Music quiz')
    else:
        box.showinfo('info','Invalid Login')



window = Tk()
window.title('Music quiz')
window.geometry("300x125")
window.wm_iconbitmap('Favicon.ico')

frame = Frame(window)

Label1 = Label(window,text = 'Username:')
Label1.pack()

entry1 = Entry()
entry1.pack()



Label2 = Label(window,text = 'Password: ')
Label2.pack()

entry2 = Entry()
entry2.pack()

Answer 1

这是经过编辑的代码，我认为它可以满足您的要求。解释在cmets形式的代码中。

import tkinter
from tkinter import *
import tkinter.messagebox as box
import time

def dialog1():
    username=entry1.get()
    password = entry2.get()
    if (username == 'Noel' and  password == 'Music quiz'):
        box.showinfo('info','You may now enter the Music quiz')
        loginframe.destroy()  #remove the login frame
        ##code to create the quiz goes here##
    else:
        box.showinfo('info','Invalid Login')




window = Tk()
window.title('Music quiz')
window.geometry("300x125")
window.wm_iconbitmap('Favicon.ico')
loginframe = Frame(window)  #create an empty frame for login
loginframe.pack()  #put the empty frame into the window


#all elements below are put into the 'loginframe' Frame
Label1 = Label(loginframe,text = 'Username:')
Label1.pack()

entry1 = Entry(loginframe)
entry1.pack()

Label2 = Label(loginframe,text = 'Password: ')
Label2.pack()

entry2 = Entry(loginframe)
entry2.pack()

donebttn = Button(loginframe, text='Done',
                  command=dialog1)  #create a button to continue
donebttn.pack()  #display that button
mainloop()