我目前正在使用tkinter开发一个GUI，它允许用户在不同的框架之间导航。我的代码结构基于this user response。在

我现在的问题是在框架发生变化时自动调整tkinter的窗口以适应其内容。我希望窗口的边框适合红色箭头后面的小部件，如here和{a3}(下面示例代码的输出)，这样每个帧中都没有这样的“空白”。在

代码的工作方式是show_frame方法允许在两个定义的帧之间进行更改。在from tkinter import *

class WindowController(Tk):

def __init__(self, *args, **kwargs):

Tk.__init__(self, *args, **kwargs)

container = Frame(root)

container.grid()

self.frames = {}

for F in (FirstWindow, SecondWindow):

frame = F(parent=container, controller=self)

self.frames[F] = frame

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

self.show_frame(FirstWindow)

self.destroy()

def show_frame(self, cont):

frame = self.frames[cont]

frame.tkraise()

class FirstWindow(Frame):

def __init__(self, parent, controller):

self.controller = controller

self.parent = parent

Frame.__init__(self, parent)

# Widgets:

# "Do Nothing" Button

self.Title0 = Button(self, text='Do nothing')

self.Title0.grid(row=0, column=0)

# "Do Nothing" Button

self.Title1 = Button(self, text='Do Nothing')

self.Title1.grid(row=1, column=0)

# Change Frame Button

self.Title2 = Button(self, text='To Second Window', command=lambda: self.controller.show_frame(SecondWindow))

self.Title2.grid(row=2, column=0)

class SecondWindow(Frame):

def __init__(self, parent, controller):

self.controller = controller

self.parent = parent

Frame.__init__(self, parent)

# Widgets:

# "Do Nothing" Button

self.Title0 = Button(self, text='Do nothing')

self.Title0.grid(row=0, column=0)

# "Do Nothing" Button

self.Title1 = Button(self, text='Do Nothing')

self.Title1.grid(row=0, column=1)

# Change Frame Button

self.Title2 = Button(self, text='To First Window', command=lambda: self.controller.show_frame(FirstWindow))

self.Title2.grid(row=0, column=2)

if __name__ == "__main__":

root = Tk()

root.resizable(width=False, height=False)

app = WindowController()

app.mainloop()

我的问题似乎与here中的问题相似，但没有得到解决。在

这是我在这里的第一个问题，所以非常感谢批评。在