tkinter 网格不根据窗口大小调整大小

所以我遇到了一些我无法理解并需要帮助的事情。我有 2 个按钮，它们都将您发送到下一帧，它们工作得很好，但是当我调整窗口大小时，它们保持相同的大小并保持在左上角，我希望它们将它们自己放在屏幕的中央。如果有一个关于它们也在成长的例子，那也将是值得赞赏的，但不是必需的。如果可能的话，我也想坚持使用网格。我尝试了 columnconfigure 并将框架放在另一个框架中，但我所做的一切似乎都不起作用。奇怪的是，如果我用 self 替换容器并将 self 放在它可以工作的按钮上但没有命令工作，有人可以向我解释这一点或给我一个很好的例子来说明我做错了什么？

代码示例：

import tkinter as tk
class MYapp(tk.Tk):
    def __init__(self, *args, **kwargs):
        tk.Tk.__init__(self, *args, **kwargs)

        container = tk.Frame(self)
        container.grid(row = 0,column = 0, sticky = "nsew")
        container.rowconfigure(0, weight = 1)
        container.columnconfigure(0, weight = 1)
        container.columnconfigure(1, weight = 1)
        self.frames = {}
        for FRAME in (N1, N2):
            frame = FRAME(container, self)
            self.frames[FRAME] = frame
            frame.grid(row = 0, column = 0, sticky = "nsew")
        self.show_frame(N1)
    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()
class N1(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        a = tk.Button(self, text = "N1", command = lambda: controller.show_frame(N2))
        a.grid(row = 0, column = 0, sticky = "nsew")
        c = tk.Button(self, text = "N1", command = lambda: controller.show_frame(N2))
        c.grid(row = 0, column = 1, sticky = "nsew")
class N2(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        b = tk.Button(self, text = "N2")
        b.grid(row = 0, column = 0, sticky = "nsew")
if __name__ == "__main__":
    app = MYapp()
    app.mainloop()

已解决：感谢布赖恩。这是带有答案的更新代码。

import tkinter as tk
class MYapp(tk.Tk):
    def __init__(self, *args, **kwargs):
        tk.Tk.__init__(self, *args, **kwargs)

        container = tk.Frame(self)
        container.pack(fill="both", expand=True)
        container.rowconfigure(0, weight = 1)
        container.columnconfigure(0, weight = 1)
        self.frames = {}
        for FRAME in (N1, N2):
            frame = FRAME(container, self)
            self.frames[FRAME] = frame
            frame.grid(row = 0, column = 0, sticky = "nsew")
            frame.rowconfigure(0, weight = 1)
            frame.columnconfigure(0, weight = 1)
            frame.columnconfigure(1, weight = 1)
        self.show_frame(N1)
    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()
class N1(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        a = tk.Button(self, text = "N1", command = lambda: controller.show_frame(N2))
        a.grid(row = 0, column = 0, sticky = "nsew")
        c = tk.Button(self, text = "N1", command = lambda: controller.show_frame(N2))
        c.grid(row = 0, column = 1, sticky = "nsew")
class N2(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        b = tk.Button(self, text = "N2")
        b.grid(row = 0, column = 0, sticky = "nsew")
if __name__ == "__main__":
    app = MYapp()
    app.mainloop()