Tkinter 小部件都打包在同一个框架中答案

【问题标题】：Tkinter widgets all pack in the same FrameTkinter 小部件都打包在同一个框架中
【发布时间】：2019-05-20 20:22:23
【问题描述】：

我正在尝试用多个窗口制作一个相当简单的 GUI。我现在将我的窗口构建为类，每个类都带有一个标签。我似乎无法弄清楚为什么当我运行我的程序时它会打包“StartPage”上的所有标签，而其他窗口中没有任何内容。可能是我的课程配置不正确？

import tkinter as tk


class application(tk.Tk):

def __init__(self, *args, **kwargs):
    tk.Tk.__init__(self, *args, **kwargs)
    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, WeeklyBudget, LongtermSavings, Investments):
        frame = F(container, self)
        self.frames[F] = frame

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


    self.ShowFrame(StartPage)

def ShowFrame(self, cont):
    frame = self.frames[cont]
    frame.tkraise()


class StartPage(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        start_label = tk.Label(self, text = 'Welcome to Finance Track!')
        start_label.pack()
        week_btn = tk.Button(self, text = 'Weekly Budgeting', command =lambda: controller.ShowFrame(WeeklyBudget))
    savings_btn = tk.Button(self, text = 'Longterm Savings', command = lambda: controller.ShowFrame(LongtermSavings))
    invest_btn = tk.Button(self, text = 'Investments', command = lambda: controller.ShowFrame(Investments))


    week_btn.pack(pady = 10, padx = 10)
    savings_btn.pack(pady = 10, padx = 10)
    invest_btn.pack(pady = 10, padx = 10)

class WeeklyBudget(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(text = 'Welcome to your Weekly Budget')
        label.pack()
        add_btn = tk.Button(text = 'add new week')
        add_btn.pack()

class LongtermSavings(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(text = 'Welcome to your Longterm Savings')

        label.pack()

class Investments(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(text = 'Welcome to your Investments')
        label.pack()

app = application()
app.mainloop()

我之前描述的当前结果只是一个窗口，其中包含所有标签和所有按钮。

【问题讨论】：

您的大多数小部件都没有被明确地赋予父级（第一个位置参数）。默认父级是根窗口。

标签： python python-3.x tkinter tk

【解决方案1】：

正如 jasonharper 所说，您并没有定义许多小部件的父级（也称为主控）。

class Investments(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(text = 'Welcome to your Investments')
        label.pack()

例如，使用这个Investments 类，默认情况下，您的标签将被赋予窗口作为它的父级，要将其设置为新创建的框架的父级，只需执行以下操作：

class Investments(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text = 'Welcome to your Investments')
        label.pack()

【讨论】：