[英]Using OOP to make Tkinter GUI
我是編程新手,所以我做了一個簡單的在線項目並嘗試使用 OOP 為它制作 GUI,你能幫我解決這個錯誤嗎:
'RuntimeError: Too early to run the main loop: no default root window'
我取出按鈕使其更短:
from tkinter import *
import tkinter as tk
from tkinter import ttk
contact_list = [
['Dermot Bruce', '071 0403 6313'],
['Felix Kent', '071 7050 4862'],
['Eren Yeager', '071 4174 1560'],
['Roy Mustang' '071 5173 4259'],
['Arietta Curtis', '071 4415 8004'],
['Jennifer Love', '071 8857 1196'],
]
class address_list():
def __init__(self, *args):
self.contact = contact_list
class App(tk.Tk):
def __init__(self):
tk.Tk.__init__(self, address_list)
self.title = "Address Book Interface"
self.geometry('400x400')
self.resizable(0, 0)
self.config(bg='lightblue')
self.name = StringVar()
self.number = StringVar()
# create frame
self.frame = Frame(self)
self.frame.pack(side=RIGHT)
def add_contact(contact_list):
contact_list.append([self.name.get(), self.number.get()])
select_set()
# to view selected contact(first select then click on view button
def edit(contact_list):
contact_list[Selected()] = [self.name.get(), self.number.get()]
select_set()
def view(contact_list):
NAME, PHONE = contact_list[Selected()]
self.name.set(NAME)
self.number.set(PHONE)
# to delete selected contact
def delete(contact_list):
del contact_list[Selected()]
select_set()
# empty name and number field
def reset(contact_list):
self.name.set('')
self.number.set('')
# exit game window
def exit(contact_list):
self.destroy()
def select_set(contact_list):
contact_list.sort()
select.delete(0, END)
for name, phone in contact_list:
enter
code
hereselect.insert(END, self.name)
select_set()
if __name__ == '__main__':
mainloop()
這個錯誤的意思正是它所說的。 在創建根 window 之前,您不能調用mainloop
,並且永遠不會創建任何小部件。
您的代碼應如下所示:
if __name__ == '__main__':
app = App()
app.mainloop()
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