python3.6 messagebox_如何在Tkinter（Python3.6）中成功登录后显示主窗口

下面的代码可用于获得所需的效果，并对其进行了注释，以显示每一步所发生的情况：from tkinter import * #Imports Tkinter

import sys #Imports sys, used to end the program later

root=Tk() #Declares root as the tkinter main window

top = Toplevel() #Creates the toplevel window

entry1 = Entry(top) #Username entry

entry2 = Entry(top) #Password entry

button1 = Button(top, text="Login", command=lambda:command1()) #Login button

button2 = Button(top, text="Cancel", command=lambda:command2()) #Cancel button

label1 = Label(root, text="This is your main window and you can input anything you want here")

def command1():

if entry1.get() == "user" and entry2.get() == "password": #Checks whether username and password are correct

root.deiconify() #Unhides the root window

top.destroy() #Removes the toplevel window

def command2():

top.destroy() #Removes the toplevel window

root.destroy() #Removes the hidden root window

sys.exit() #Ends the script

entry1.pack() #These pack the elements, this includes the items for the main window

entry2.pack()

button1.pack()

button2.pack()

label1.pack()

root.withdraw() #This hides the main window, it's still present it just can't be seen or interacted with

root.mainloop() #Starts the event loop for the main window

这将使用Toplevel小部件来创建一个窗口，该窗口询问用户的详细信息，然后将他们引导到主窗口，您可以根据需要进行设置。在

您还可以使用示例中使用的弹出消息，如果需要，还可以更改Toplevel小部件的大小。在

但请注意，这不是一种特别安全的管理密码和登录的方式。因此，我建议您在编程中查找处理敏感信息的适当礼仪。在