如何更改每页的背景图像

是的,我知道如何配置背景图像,但是在这种情况下,我不知道作为小部件的父级引用什么,因为当我使用self时没有显示任何内容。

例如,我将使用Bryan Oakley的锅炉板切换帧代码:

import tkinter as tk                
from tkinter import font  as tkfont 


class SampleApp(tk.Tk):

    def __init__(self, *args, **kwargs):
        tk.Tk.__init__(self, *args, **kwargs)

        self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")

        container = tk.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 (StartPage, PageOne):
            page_name = F.__name__
            frame = F(parent=container, controller=self)
            self.frames[page_name] = frame

            frame.grid(row=0, column=0, sticky="nsew")

        self.show_frame("StartPage")

    def show_frame(self, page_name):
        frame = self.frames[page_name]
        frame.tkraise()


class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller

        **### Here for example this does nto do anything to the window**

        self.background_image= tk.PhotoImage("image_path")
        self.background_label = tk.Label(self, image=self.background_image)
        self.background_label.place(x=0, y=0, relwidth=1, relheight=1)
        self.background_label.image = self.background_image


class PageOne(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller


if __name__ == "__main__":
    app = SampleApp()
    app.mainloop()

提前感谢您的帮助!