python - 在 tkinter 中成功登录后如何销毁 Class 窗口？

问题描述

我当前的代码位于底部

Window1成功登录后我试图关闭并打开Window2

目前，我仅出于测试目的输入用户名。

如果是用户名条目，我当前的if语句将打开新窗口。one但是会显示两个窗口。

我需要摆脱 Window 1 并在成功登录后只显示 Window 2。

我做了一些研究并找到了这个答案，但我认为这不适用于我当前的代码。

我也尝试了以下方法，但出现错误：

def login_system(self):
    u = self.UsernameEntry.get()
    if u == "one":
        self.newWindow = Toplevel(self.master)
        self.app = Window2(self.newWindow)
        Window1().destory()

错误：

TypeError: __init__() missing 1 required positional argument: 'master'

我怎样才能做到这一点？

from tkinter import *
from tkinter import DISABLED, messagebox
import tkinter.ttk as ttk
import os
import glob
from PIL import Image, ImageTk, ImageGrab
from pathlib import Path
import pyautogui
import time

def main():
    root = Tk()
    app = Window1(root)
    root.mainloop()

class Window1:
    def __init__(self,master):
        self.master = master
        self.master.title("User Log In")
        self.master.geometry('1000x750')
        self.frame = Frame(self.master)
        self.frame.pack(fill="both", expand=True)


        self.UsernameEntry = Entry(self.frame)
        self.UsernameEntry.grid(row = 2, column = 0)


        self.btnLogin = Button(self.frame, text = 'login', width = 17, command = self.login_system)
        self.btnLogin.grid(row = 3, column = 0)

    def login_system(self):
        u = self.UsernameEntry.get()
        if u == "one":
            self.newWindow = Toplevel(self.master)
            self.app = Window2(self.newWindow)

        else:
            self.UsernameEntry.delete(0,"end")


class Window2:
    def __init__(self,master):
        notebook = ttk.Notebook(master)

        notebook.pack(expand = 1, fill = "both")
        #Frames
        main = ttk.Frame(notebook)
        manual = ttk.Frame(notebook)
        notebook.add(main, text='Main-Screen')
        notebook.add(manual, text='Manual')



if __name__ == '__main__':
    main()

标签： pythontkinter

您正在使用许多不需要的库。无论如何，您只需要一行代码就可以在 if 语句 self.master.withdraw()内部工作

--EDIT-- 因为你要求它，我添加了一个函数来关闭 cmd

完整代码

from tkinter import *
...

def main():
    root = Tk()
    app = Window1(root)
    root.mainloop()

class Window1:
    def __init__(self,master):
        self.master = master
        ....

    self.btnLogin = Button(self.frame, text = 'login', width = 17, command = self.login_system)
    self.btnLogin.grid(row = 3, column = 0)

    def on_closing(self): #Add this event handler
        self.master.destroy()

    def login_system(self):
        u = self.UsernameEntry.get()
        if u == "one":
            self.master.withdraw() #Do NOT call destroy as you need the root to be 
                                   #active for Toplevel
            self.newWindow = Toplevel(self.master)
            self.newWindow.protocol("WM_DELETE_WINDOW", self.on_closing) #And add this

            self.app = Window2(self.newWindow)

        else:
            self.UsernameEntry.delete(0,"end")


class Window2:
    ....



if __name__ == '__main__':
    main()

python - 在 tkinter 中成功登录后如何销毁 Class 窗口？

问题描述

解决方案

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