为什么我的 Tkinter 登录按钮在我的程序中不起作用？

Question

这是一个简单的登录屏幕。我不知道这有什么问题。当我点击登录时，什么也没有发生。请指教。

from tkinter import *

from tkinter import messagebox

window = Tk()

window.title("PyOS")

window.geometry('1000x500')

user = Label(window,text="Username")

pass1 = Label(window,text="Password")

login = Button(window,text="Login")

def clicked(login):

    wrong = Label(window,text="Wrong Password")

    wrong.grid(column=1,row=2)

userentry = Entry(window,font="Sanserif",width=30)

passentry = Entry(window,font="Marlett",show="n",width=17)

userentry.grid(column=1, row=0)

passentry.grid(column=1, row=1)

user.grid(column=0, row=0)

pass1.grid(column=0, row=1)

login.grid(column=0, row=2)

window.mainloop()

Answer 1

您需要告诉按钮在按下时执行哪个功能。这是通过使用commandButton的参数来完成的。from tkinter import *from tkinter import messageboxwindow = Tk()window.title("PyOS")def clicked():    wrong = Label(window,text="Wrong Password")    wrong.grid(column=1,row=2)user = Label(window,text="Username")pass1 = Label(window,text="Password")login = Button(window,text="Login", command=clicked)userentry = Entry(window,font="Sanserif")passentry = Entry(window,font="Marlett", show="*")userentry.grid(column=1, row=0)passentry.grid(column=1, row=1)user.grid(column=0, row=0)pass1.grid(column=0, row=1)login.grid(column=0, row=2)window.mainloop()