Question

试图生成一个随机团队，然后将其从选择列表中删除，希望添加“没有团队”的显示，但需要一些帮助

from tkinter import *
import random


def teams():
    words_list = [ Atlanta Hawks ,
                   Boston Celtics ,
                   Brooklyn Nets ,
                   Charlotte Hornets ,
                   Chicago Bulls ,
                   Cleveland Cavaliers ,
                   Dallas Mavericks ,
                    Denver Nuggets ,
                    Detroit Pistons ,
                    Golden State Warriors ,
                     Houston Rockets ,
                    Indiana Pacers ,
                   Los Angeles Clippers ,
                   Los Angeles Lakers ,
                   Memphis Grizzlies ,
                   Miami Heat ,
                   Milwaukee Bucks ,
                   Minnesota Timberwolves ,
                   New Orleans Pelicans ,
                   New York Knicks ,
                   Oklahoma City Thunder ,
                   Orlando Magic ,
                   Philadelphia 76ers ,
                   Phoenix Suns ,
                    Portland Trail Blazers ,
                   Sacramento Kings ,
                   San Antonio Spurs ,
                   Toronto Raptors ,
                   Utah Jazz ,
                   Washington Wizards ]

    while words_list:
        team = words_list.pop(random.randrange(len(words_list)))
        label.config(text=team)


window = Tk()
icon = PhotoImage(file= IMG_0612.png )
window.iconphoto(True, icon)
button = Button(window, text= Click me!!! )
button.config(command=teams)  # performs call back of function
button.config(font=( Ink Free , 20,  bold ))
button.config(bg= #ff6200 )
button.config(fg= #fffb1f )
button.config(activebackground= #FF0000 )
button.config(activeforeground= #fffb1f )
image = PhotoImage(file= IMG_0612.png )
button.config(image=image)
button.config(compound= bottom )
label = Label(window)
label.config(font=( Monospace , 50))
label.pack()
button.pack()
window.mainloop()

当所有单词都被删除时，我正在排除崩溃，但列表只是随着按钮重复，表现得就像删除代码根本不存在一样。

Answer 1

您需要将数据移出函数，这样就不会在每次调用时都重新创建它。您还需要一个列表来复制到，这样您就不会丢失整个数据库。

import tkinter as tk #importing an entire package with * is bad practice
import random

#teams database
teams_db = [ Atlanta Hawks ,
             Boston Celtics ,
             Brooklyn Nets ,
             Charlotte Hornets ,
             Chicago Bulls ,
             Cleveland Cavaliers ,
             Dallas Mavericks ,
             Denver Nuggets ,
             Detroit Pistons ,
             Golden State Warriors ,
             Houston Rockets ,
             Indiana Pacers ,
             Los Angeles Clippers ,
             Los Angeles Lakers ,
             Memphis Grizzlies ,
             Miami Heat ,
             Milwaukee Bucks ,
             Minnesota Timberwolves ,
             New Orleans Pelicans ,
             New York Knicks ,
             Oklahoma City Thunder ,
             Orlando Magic ,
             Philadelphia 76ers ,
             Phoenix Suns ,
             Portland Trail Blazers ,
             Sacramento Kings ,
             San Antonio Spurs ,
             Toronto Raptors ,
             Utah Jazz ,
             Washington Wizards ]
            
#list for processing     
teams_list = None
         
def teams():
    global teams_list
    
    #reset teams_list to a fresh copy of the database if it is empty
    if not teams_list: 
        teams_list = teams_db[:]
    #set label
    label.config(text=teams_list.pop(random.randrange(len(teams_list))))


window = tk.Tk()
icon = tk.PhotoImage(file= IMG_0612.png )
window.iconphoto(True, icon)
button = tk.Button(window, text= Click me!!! )
button.config(command=teams)  # performs call back of function
button.config(font=( Ink Free , 20,  bold ))
button.config(bg= #ff6200 )
button.config(fg= #fffb1f )
button.config(activebackground= #FF0000 )
button.config(activeforeground= #fffb1f )
#you already have a reference to this image
image = tk.PhotoImage(file= IMG_0612.png )
button.config(image=image)
button.config(compound= bottom )
label = tk.Label(window)
label.config(font=( Monospace , 50))
label.pack()
button.pack()
window.mainloop()

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