从另一个框架类访问 tkinter 框架类中的组件

Question

我在 tkinter 中创建了一个 2 Frames 应用程序，灵感来自 https://www.geeksforgeeks.org/how-to-change-the-tkinter-label-text/。目的是通过单击开始按钮导入新图像，并将其保存在 map.json 文件中。当我单击按钮时，框架会切换。但是，我想在单击按钮时查看 EditMenu 框架上的图像。由于该按钮位于主框架中，因此我找不到访问 EditMenu 中的标签的方法。

edit_frame.map_image_label = config(image=map_image)enter code here

行给出以下错误：

NameError: name 'config' is not defined. Did you mean: 'self.config'? 

PS：代码中的json部分暂时不起作用，不用关注

   import json
   import os
   import shutil
   from tkinter import *
   from tkinter import filedialog, simpledialog
   
   
   class Main(Tk):
   
       def __init__(self, *args, **kwargs):
           Tk.__init__(self, *args, **kwargs)
           self.title("CS Memorizer")
           self.state('zoomed')
           container = Frame(self)
   
           container.pack(side="top", fill="both", expand=True)
   
           container.grid_rowconfigure(0, weight=1)
           container.grid_columnconfigure(0, weight=1)
   
           self.frames = {}
   
           for F in (Home, EditMenu):
               frame = F(container, self)
   
               self.frames[F] = frame
   
               frame.grid(row=0, column=0, sticky="nsew")
   
           frame = self.frames[Home]
           frame.tkraise()
   
       def save_image(self):
           map_name = simpledialog.askstring("Map name", "Enter the name of the map.")
           map_start_path = filedialog.askopenfilename()
           file = open(map_start_path)
           map_destination_path = os.getcwd() + "\\" + map_name + os.path.splitext(map_start_path)[1]
           shutil.copyfile(map_start_path, map_destination_path)

           with open("maps.json", "w+") as f:
               if f.read() == "":
                   f.write(json.dumps({"maps": [1]}, indent=2))
           edit_frame = self.frames[EditMenu]
           edit_frame.tkraise()
           map_image = PhotoImage(map_destination_path)
           #Error !
           edit_frame.map_image_label = configure(image=map_image)

class Home(Frame):
   def __init__(self, parent, controller):
       Frame.__init__(self, parent)
       self.config(background="skyblue")
       maps_grid = Frame(self)
       maps_grid.pack()

       start_button = Button(maps_grid, text="Plus",  command=lambda: controller.save_image())
       start_button.grid(row=0, column=0)
   
class EditMenu(Frame):
   def __init__(self, parent, controller):
       Frame.__init__(self, parent)
       map_image_label = Label(self)
           map_image_label.pack()

Answer 1

错误告诉您没有成功执行

config(image=map_image)

并建议您需要将其更改为

self.config(image=map_image)

在您共享的代码中找不到此内容，因此它一定在其他地方。您需要找到此代码并将

self.

添加到

config

。